Polyamide 46 (nylon 46) PA 46
Poly(tetramethylene adipamide), -[NH(CH2)4NH-CO(CH2)4CO]-n, made from 1,4-diaminobutane and adipic acid · CAS 50327-22-5
Also known as Stanyl
Polyamide 46 (nylon 46) is a semicrystalline aliphatic polyamide made from 1,4-diaminobutane and adipic acid.
Evidence level
2 of 5
Lab-measured
- 0Predicted only. No one has made it, or no measurement exists.
- 1Calculated. Only calculated or predicted values from sources.
- 2Lab-measured. Measured properties with their conditions stated.
- 3Space-relevant tests. Measured in conditions relevant to space, such as vacuum or atomic oxygen.
- 4Ground-qualified. Qualified for an application on the ground.
- 5Flown or field-proven. Flight or field results exist.
Heat under load
190 °C at 1.8 MPa
Stiff when dry
16000 MPa tensile modulus
Long heat life
152 °C thermal index
Recipe, share of the weight
- C4H12N2 not stated1,4-diaminobutane (putrescine)
- C6H10O4 not statedAdipic acid
Best for
Heat-tolerant moulded parts that carry load: TW341 has a deflection temperature of 190 °C at 1.8 MPa, and the 50 % glass-filled TW241F10 grade has 290 °C at 1.80 MPa
Weakest at
Water: TW341 takes up 3.7 % moisture at 50 % RH and its tensile modulus falls from 3300 MPa dry to 1000 MPa conditioned. Strong acids and strong alkalis are rated unacceptable for Nylatron 4.6
Risk at a glance
- People Low. Dry before processing; treat the diamine as toxic
- If it fails High. Water uptake
- Corrosion Severe. Moisture is the largest change: TW341 tensile modulus falls from 3300 MPa dry to 1000 MPa conditioned, and yield stress from 100 MPa to 55.0 MPa.
Quick facts: PA 46
| Property | Value | Basis |
|---|---|---|
| Density | 1.18 to 1.19 g/cm³ | 2 sourced values across conditions |
| Yield strength | 55 to 100 MPa | 2 sourced values across conditions |
| Tensile strength | 55 to 103 MPa | 2 sourced values across conditions |
| Young's modulus | 1 to 16 GPa | 5 sourced values across conditions |
| Thermal conductivity | 0.3 W/(m·K) | 1 sourced value |
| Thermal expansion (CTE) | 90 ppm/K | 1 sourced value |
| Melting point | 290 to 295 °C | 2 sourced values across conditions |
| Maximum service temperature | 100 to 200 °C | 2 sourced values across conditions |
What is the density of Polyamide 46 (nylon 46) (PA 46)?
Polyamide 46 (nylon 46) (PA 46) has a density of 1.18 to 1.19 g/cm³. The range covers 2 sourced values across the tempers, forms and test conditions the sources report; room-temperature values are used where a source states a temperature.
What is the thermal conductivity of Polyamide 46 (nylon 46) (PA 46)?
Polyamide 46 (nylon 46) (PA 46) has a thermal conductivity of 0.3 W/(m·K). The source and test conditions are listed in the properties table on this page.
What is the coefficient of thermal expansion of Polyamide 46 (nylon 46) (PA 46)?
Polyamide 46 (nylon 46) (PA 46) has a coefficient of thermal expansion of 90 ppm/K. The source and test conditions are listed in the properties table on this page.
What is the melting point of Polyamide 46 (nylon 46) (PA 46)?
Polyamide 46 (nylon 46) (PA 46) has a melting point of 290 to 295 °C. The range covers 2 sourced values across the tempers, forms and test conditions the sources report; room-temperature values are used where a source states a temperature.
What is the yield strength of Polyamide 46 (nylon 46) (PA 46)?
Polyamide 46 (nylon 46) (PA 46) has a yield strength of 55 to 100 MPa. The range covers 2 sourced values across the tempers, forms and test conditions the sources report; room-temperature values are used where a source states a temperature.
What is Polyamide 46 (nylon 46) (PA 46) used for?
Uses recorded in the sources include Electronic foot throttle assemblies; Gears and structural parts (50 % glass fibre); Under-the-hood engine and transmission parts.
Why it exists
Polyamide 46 is a semicrystalline aliphatic polyamide that Envalior sells as Stanyl. The unfilled TW341 grade has a melting temperature of 295 °C, a deflection temperature of 190 °C at 1.8 MPa and a dry tensile modulus of 3300 MPa. The gap between dry and conditioned is the main thing to read in the table: conditioned TW341 falls to 1000 MPa. Envalior's glass-filled TW241F10 grade is much stiffer, at 16000 MPa dry.
Where it's used
Electronic foot throttle assemblies
The TW341 sheet lists Deere foot throttle assembly parts that use this grade, moulded by AKO-Kunststoffe.
Gears and structural parts
Envalior says the glass-filled TW241F10 has a track record in gear applications and structural parts. This is a 50 % glass-fibre composite, not the unfilled grade.
Under-the-hood parts
Wikipedia lists automotive under-the-hood use for nylon 46, including engine, transmission, brake and air-cooling systems.
Recipe
Poly(tetramethylene adipamide), -[NH(CH2)4NH-CO(CH2)4CO]-n, made from 1,4-diaminobutane and adipic acid
Nylon 46 is made by polycondensation of 1,4-diaminobutane (putrescine) and adipic acid, which gives the 4-6 name (Wikipedia). Its repeat unit is -[NH(CH2)4NH-CO(CH2)4CO]-, with four CH2 groups from each monomer.
| Ingredient | Share of the weight | What it does |
|---|---|---|
| 1,4-diaminobutane (putrescine) C4H12N2 | not stated | Diamine monomer. Its amine groups react with the acid groups of adipic acid (PubChem CID 1045). |
| Adipic acid C6H10O4 | not stated | Diacid monomer that forms the amide links with the diamine (PubChem CID 196). |
Weight shares are as printed in the sources.
What it can do
Heat under load
190 °C at 1.8 MPa
measured
The unfilled TW341 grade has a deflection temperature of 190 °C at 1.8 MPa (ISO 75-2/A), and Nylatron 4.6 gives 160 °C (ASTM D648).
Stiff when dry
16000 MPa tensile modulus
measured
Glass-filled TW241F10 has a dry tensile modulus of 16000 MPa and 10000 MPa conditioned, as printed by Envalior (ISO 527-1/-2).
Long heat life
152 °C thermal index
measured
TW341 has a thermal index of 152 °C at 5000 hrs (IEC 60216), and the filled TW241F10 grade has 177 °C at 5000 hrs.
How it compares
The TW341 dry and conditioned rows are one grade in two states, so they show what moisture changes: the modulus falls from 3300 MPa to 1000 MPa. Nylatron 4.6 is a different unreinforced grade and gives 3.24 GPa tensile modulus, 290 °C melting point and 7.0 % water at saturation, so its values are read as examples, not as a ranking. The filled TW241F10 grade shows what 50 % glass fibre does: 16000 MPa dry and 1.85 % humidity absorption. The Goodfellow rod rows give ranges with no test standard printed, so they are kept as examples only.
The same measurements for each material, so you can compare them. Each row names the key condition under the value; the full conditions and methods are in the numbered notes under Technical details. Other materials are shown beside it; each was measured under its own conditions, so open its page before comparing closely. Compare every grade in the family.
| Measurement | PA 46 | PA 11 | PA 12 | PA 6 | PA 66 | PPA |
|---|---|---|---|---|---|---|
| Thermal behavior and safety | ||||||
| Deflection temperature at 1.8 MPa, unannealed, Stanyl TW341 (dry) | 190 °C14 | 130 °C | no data | 200 °C | 75 °C | 260 °C |
| Melting temperature, Stanyl TW341 (dry) | 295 °C15 | 181 °C | 184 °C | no data | 260 °C | 300 °C |
| Thermal conductivity, Nylatron 4.6 (unreinforced) | 0.303 W/m-K27 | no data | no data | no data | 0.33 W/(m K) | no data |
| Melting point, Nylatron 4.6 (crystalline peak) | 290 °C28 | 181 °C | 184 °C | no data | 260 °C | 300 °C |
| Deflection temperature at 1.8 MPa, Nylatron 4.6 | 160 °C30 | 130 °C | no data | 200 °C | 75 °C | 260 °C |
| Temperature of deflection under load at 1.80 MPa, Stanyl TW241F10, 50 % glass fibre (dry) | 290 °C33 | 130 °C | no data | 200 °C | 75 °C | 260 °C |
| Heat deflection temperature at 0.45 MPa, nylon 46 rod, as listed by Goodfellow | 220 °C35 | 130 °C | no data | 200 °C | 75 °C | 260 °C |
| Physical and electrical | ||||||
| Density, Stanyl TW341 (dry) | 1.18 g/cm³1 | 1.04 g/cm³ | 0.9 to 0.95 g/cm³ | 1.123 g/cm³ | 1.13 g/cc | 1.47 g/cm³ |
| Specific gravity, Nylatron 4.6 (unreinforced) | 1.19 g/cm³2 | 1.04 g/cm³ | 0.9 to 0.95 g/cm³ | 1.123 g/cm³ | 1.13 g/cc | 1.47 g/cm³ |
| Other measurements | ||||||
| Water absorption at equilibrium, 23 °C, 50 % RH, Stanyl TW341 | 3.7 %3 | 1.6 % | 0.52 % | 10 % | 2.8 % | 3.5 % |
| Water absorption at equilibrium, Goodfellow nylon 46 rod | 3.7 %4 | 1.6 % | 0.52 % | 10 % | 2.8 % | 3.5 % |
| Water absorption, immersion 24 h, Nylatron 4.6 | 0.6 %5 | 1.6 % | 0.52 % | 10 % | 2.8 % | 3.5 % |
| Water absorption at saturation, Nylatron 4.6 | 7 %6 | 1.6 % | 0.52 % | 10 % | 2.8 % | 3.5 % |
| Tensile modulus, Stanyl TW341 (dry) | 3300 MPa7 | 345 MPa | 1700 N/mm2 | no data | no data | 12100 MPa |
| Tensile modulus, Stanyl TW341 (conditioned) | 1000 MPa8 | 345 MPa | 1700 N/mm2 | no data | no data | 12100 MPa |
| Tensile stress at yield, Stanyl TW341 (dry) | 100 MPa9 | 26 MPa | no data | no data | 82 MPa | no data |
| Tensile stress at yield, Stanyl TW341 (conditioned) | 55 MPa10 | 26 MPa | no data | no data | 82 MPa | no data |
| Nominal tensile strain at break, Stanyl TW341 (dry) | 40 %11 | > 50 % | 20 % | no data | no data | 2 % |
| Flexural modulus, Stanyl TW341 (dry) | 3000 MPa12 | 350 MPa | 1240 N/mm2 | no data | 2.9 GPa | 10300 MPa |
| Flexural modulus, Stanyl TW341 (conditioned) | 900 MPa13 | 350 MPa | 1240 N/mm2 | no data | 2.9 GPa | 10300 MPa |
| Relative permittivity at 100 Hz, Stanyl TW341 (dry) | 3.9 -16 | 9 - | no data | no data | no data | 4.3 - |
| Relative permittivity at 100 Hz, Stanyl TW341 (conditioned) | 22 -17 | 9 - | no data | no data | no data | 4.3 - |
| Electric strength, Stanyl TW341 (dry) | 25 kV/mm18 | 23 kV/mm | no data | no data | no data | 27 kV/mm |
| Electric strength, Stanyl TW341 (conditioned) | 15 kV/mm19 | 23 kV/mm | no data | no data | no data | 27 kV/mm |
| Tensile strength, Nylatron 4.6 (unreinforced) | 103 MPa20 | 48 MPa | 45 N/mm2 | no data | no data | 220 MPa |
| Tensile strength at 65 °C, Nylatron 4.6 (unreinforced) | 41.4 MPa21 | 48 MPa | 45 N/mm2 | no data | no data | 220 MPa |
| Elongation at break, Nylatron 4.6 (unreinforced) | 25 %22 | > 50 % | 20 % | no data | no data | 2 % |
| Tensile modulus, Nylatron 4.6 (unreinforced) | 3.24 GPa23 | 345 MPa | 1700 N/mm2 | no data | no data | 12100 MPa |
| Flexural strength, Nylatron 4.6 (unreinforced) | 117 MPa24 | no data | no data | no data | 100 MPa | 304 MPa |
| Flexural modulus, Nylatron 4.6 (unreinforced) | 3.1 GPa25 | 350 MPa | 1240 N/mm2 | no data | 2.9 GPa | 10300 MPa |
| Coefficient of linear thermal expansion, Nylatron 4.6 (-40 to 150 °C) | 90 µm/m-°C26 | no data | 1.09 x10-4 /K | no data | 98 E-6/K | 1.5×10^-5 cm/cm/°C |
| Maximum service temperature in air, continuous, Nylatron 4.6 | 149 °C29 | no data | 80 °C | no data | no data | no data |
| Tensile modulus, Stanyl TW241F10, 50 % glass fibre (dry) | 16000 MPa31 | 345 MPa | 1700 N/mm2 | no data | no data | 12100 MPa |
| Tensile modulus, Stanyl TW241F10, 50 % glass fibre (conditioned) | 10000 MPa32 | 345 MPa | 1700 N/mm2 | no data | no data | 12100 MPa |
| Tensile strength, nylon 46 rod, as listed by Goodfellow | 55 MPa34 | 48 MPa | 45 N/mm2 | no data | no data | 220 MPa |
| Dielectric strength, nylon 46 rod, as listed by Goodfellow | 20 kV/mm36 | 23 kV/mm | no data | no data | no data | 27 kV/mm |
| Upper working temperature range, nylon 46 rod, as listed by Goodfellow | 100 °C37 | no data | 80 °C | no data | no data | no data |
Why choose it, and why not
Good for
- Stiff, heat-resistant moulded parts in the dry state: 3300 MPa tensile modulus and 190 °C deflection temperature at 1.8 MPa for TW341.
- Filled gear and structural parts: TW241F10 at 16000 MPa dry and 290 °C at 1.80 MPa (Envalior).
- Known heat life: thermal index 152 °C at 5000 hrs for unfilled TW341, and 177 °C for TW241F10.
Watch out for
- Water: TW341 modulus falls from 3300 MPa dry to 1000 MPa conditioned. Keep the dry state in the design or allow for the loss.
- Strong acids and alkalis are rated Unacceptable for Nylatron 4.6, and sunlight is rated Limited.
- No atomic-oxygen erosion value for PA 46 was found, so exterior use in low Earth orbit needs its own test.
- The monomer hazards are the ones PubChem reports for the diamine and the acid, not for the polymer.
Polyamide 46 is a high-heat engineering thermoplastic. Unfilled TW341 has a melting temperature of 295 °C, a deflection temperature of 190 °C at 1.8 MPa and a thermal index of 152 °C at 5000 hrs. Water is the main limit: the TW341 tensile modulus falls from 3300 MPa dry to 1000 MPa conditioned. No atomic-oxygen erosion value or UV test value for PA 46 was found, so space use needs a test.
Technical details
For scientists and researchers. Everything above comes from the record below: every number with its method, its conditions and its source.
Other names and standards
The same grade under other systems, as datasheets and standards print them. Each code was checked against the page it comes from.
| System | Codes |
|---|---|
| Trade name | Stanyl |
Notes
The method, full conditions and any caveat for the numbered rows above.
| # | Measurement | Method | Conditions | Caveat |
|---|---|---|---|---|
| 1 | Density, Stanyl TW341 (dry) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 1183 as printed | grade Stanyl TW341, heat stabilised, lubricated, naturaltest ISO 1183state dry | — |
| 2 | Specific gravity, Nylatron 4.6 (unreinforced) | Typical value printed on the Mitsubishi Chemical Advanced Materials Nylatron 4.6 ASTM product data sheet | grade Nylatron 4.6, unreinforced nylon 46test ASTM D792 | — |
| 3 | Water absorption at equilibrium, 23 °C, 50 % RH, Stanyl TW341 | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 62 as printed | grade Stanyl TW341, heat stabilised, lubricatedhumidity 50 % RHtemperature 23 °Ctest ISO 62 | — |
| 4 | Water absorption at equilibrium, Goodfellow nylon 46 rod | Value printed on the Goodfellow nylon 46 rod page; the page gives no test standard or humidity condition | grade Nylon 46 rod, as listed on the Goodfellow pagetest not stated on the page | — |
| 5 | Water absorption, immersion 24 h, Nylatron 4.6 | Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D570 as printed | grade Nylatron 4.6, unreinforced nylon 46test ASTM D570state immersion for 24 hours | — |
| 6 | Water absorption at saturation, Nylatron 4.6 | Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D570 as printed | grade Nylatron 4.6, unreinforced nylon 46test ASTM D570state saturation | — |
| 7 | Tensile modulus, Stanyl TW341 (dry) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 527-2 as printed | grade Stanyl TW341, heat stabilised, lubricatedtest ISO 527-2state dry | — |
| 8 | Tensile modulus, Stanyl TW341 (conditioned) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 527-2 as printed | grade Stanyl TW341, heat stabilised, lubricatedtest ISO 527-2state conditioned | — |
| 9 | Tensile stress at yield, Stanyl TW341 (dry) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 527-2 as printed | grade Stanyl TW341, heat stabilised, lubricatedtest ISO 527-2state dry | — |
| 10 | Tensile stress at yield, Stanyl TW341 (conditioned) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 527-2 as printed | grade Stanyl TW341, heat stabilised, lubricatedtest ISO 527-2state conditioned | — |
| 11 | Nominal tensile strain at break, Stanyl TW341 (dry) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 527-2 as printed; the conditioned value is printed only as more than 50 % | grade Stanyl TW341, heat stabilised, lubricatedtest ISO 527-2state dry | — |
| 12 | Flexural modulus, Stanyl TW341 (dry) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 178 as printed | grade Stanyl TW341, heat stabilised, lubricatedtest ISO 178state dry | — |
| 13 | Flexural modulus, Stanyl TW341 (conditioned) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 178 as printed | grade Stanyl TW341, heat stabilised, lubricatedtest ISO 178state conditioned | — |
| 14 | Deflection temperature at 1.8 MPa, unannealed, Stanyl TW341 (dry) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 75-2/A as printed | grade Stanyl TW341, heat stabilised, lubricatedload 1.8 MPatest ISO 75-2/Astate dry, unannealed | — |
| 15 | Melting temperature, Stanyl TW341 (dry) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 11357-3 as printed | grade Stanyl TW341, heat stabilised, lubricatedtest ISO 11357-3state dryheating rate 10 °C/min | — |
| 16 | Relative permittivity at 100 Hz, Stanyl TW341 (dry) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, IEC 60250 as printed | grade Stanyl TW341, heat stabilised, lubricatedtest IEC 60250frequency 100 Hzstate dry | — |
| 17 | Relative permittivity at 100 Hz, Stanyl TW341 (conditioned) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, IEC 60250 as printed | grade Stanyl TW341, heat stabilised, lubricatedtest IEC 60250frequency 100 Hzstate conditioned | — |
| 18 | Electric strength, Stanyl TW341 (dry) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, kV/mm in parentheses, IEC 60243-1 as printed | grade Stanyl TW341, heat stabilised, lubricatedtest IEC 60243-1state dry | — |
| 19 | Electric strength, Stanyl TW341 (conditioned) | Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, kV/mm in parentheses, IEC 60243-1 as printed | grade Stanyl TW341, heat stabilised, lubricatedtest IEC 60243-1state conditioned | — |
| 20 | Tensile strength, Nylatron 4.6 (unreinforced) | Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D638 as printed | grade Nylatron 4.6, unreinforced nylon 46test ASTM D638temperature 23 °Cstate dry as moulded | — |
| 21 | Tensile strength at 65 °C, Nylatron 4.6 (unreinforced) | Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D638 as printed | grade Nylatron 4.6, unreinforced nylon 46test ASTM D638temperature 65 °C | — |
| 22 | Elongation at break, Nylatron 4.6 (unreinforced) | Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D638 as printed | grade Nylatron 4.6, unreinforced nylon 46test ASTM D638 | — |
| 23 | Tensile modulus, Nylatron 4.6 (unreinforced) | Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D638 as printed | grade Nylatron 4.6, unreinforced nylon 46test ASTM D638 | — |
| 24 | Flexural strength, Nylatron 4.6 (unreinforced) | Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D790 as printed | grade Nylatron 4.6, unreinforced nylon 46test ASTM D790 | — |
| 25 | Flexural modulus, Nylatron 4.6 (unreinforced) | Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D790 as printed | grade Nylatron 4.6, unreinforced nylon 46test ASTM D790 | — |
| 26 | Coefficient of linear thermal expansion, Nylatron 4.6 (-40 to 150 °C) | Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM E831 as printed | grade Nylatron 4.6, unreinforced nylon 46test ASTM E831temperature -40 to 150 °C | — |
| 27 | Thermal conductivity, Nylatron 4.6 (unreinforced) | Typical value printed on the Nylatron 4.6 ASTM product data sheet, as printed | grade Nylatron 4.6, unreinforced nylon 46 | — |
| 28 | Melting point, Nylatron 4.6 (crystalline peak) | Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D3418 as printed | grade Nylatron 4.6, unreinforced nylon 46test ASTM D3418state crystalline peak | — |
| 29 | Maximum service temperature in air, continuous, Nylatron 4.6 | Typical value printed on the Nylatron 4.6 ASTM product data sheet | grade Nylatron 4.6, unreinforced nylon 46state continuousenvironment air | — |
| 30 | Deflection temperature at 1.8 MPa, Nylatron 4.6 | Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D648 as printed | grade Nylatron 4.6, unreinforced nylon 46load 1.8 MPatest ASTM D648 | — |
| 31 | Tensile modulus, Stanyl TW241F10, 50 % glass fibre (dry) | Typical value printed on the Envalior Stanyl TW241F10 property data sheet (print date 2026-01-27), ISO 527-1/-2 as printed | grade Stanyl TW241F10, PA46-GF50, 50 % glass fibre, heat stabilised, lubricatedtest ISO 527-1/-2state dry | — |
| 32 | Tensile modulus, Stanyl TW241F10, 50 % glass fibre (conditioned) | Typical value printed on the Envalior Stanyl TW241F10 property data sheet (print date 2026-01-27), ISO 527-1/-2 as printed | grade Stanyl TW241F10, PA46-GF50, 50 % glass fibre, heat stabilised, lubricatedtest ISO 527-1/-2state conditioned | — |
| 33 | Temperature of deflection under load at 1.80 MPa, Stanyl TW241F10, 50 % glass fibre (dry) | Typical value printed on the Envalior Stanyl TW241F10 property data sheet (print date 2026-01-27), ISO 75-1/-2 as printed | grade Stanyl TW241F10, PA46-GF50, 50 % glass fibreload 1.80 MPatest ISO 75-1/-2state dry | — |
| 34 | Tensile strength, nylon 46 rod, as listed by Goodfellow | Range printed on the Goodfellow nylon 46 rod page; the page gives no test standard or conditioning | grade Nylon 46 rod, as listed on the Goodfellow pagetest not stated on the page | — |
| 35 | Heat deflection temperature at 0.45 MPa, nylon 46 rod, as listed by Goodfellow | Value printed on the Goodfellow nylon 46 rod page; the page gives no test standard | grade Nylon 46 rod, as listed on the Goodfellow pageload 0.45 MPatest not stated on the page | — |
| 36 | Dielectric strength, nylon 46 rod, as listed by Goodfellow | Value printed on the Goodfellow nylon 46 rod page; the page gives no test standard | grade Nylon 46 rod, as listed on the Goodfellow pagetest not stated on the page | — |
| 37 | Upper working temperature range, nylon 46 rod, as listed by Goodfellow | Range printed on the Goodfellow nylon 46 rod page; no test or duration is stated | grade Nylon 46 rod, as listed on the Goodfellow pagestate upper working temperature | — |
Corrosion and compatibility
What happens when it meets other materials and environments.
| Environment | Concern | What happens |
|---|---|---|
| Continuous heat in air, unfilled Stanyl TW341 (IEC 60216) | moderate | The TW341 thermal index is 152 °C at 5000 h, for 50 % loss of tensile strength as the IEC 60216 basis.1 |
| Continuous heat in air, 50 % glass-filled Stanyl TW241F10 | low | The filled TW241F10 grade has a thermal index of 177 °C at 5000 hrs, higher than the unfilled TW341 value of 152 °C.2 |
| Continuous service in air, unreinforced Nylatron 4.6 | moderate | Nylatron 4.6 gives a maximum service temperature in air of 149 °C for continuous use.3 |
| Humid air and water, from 23 °C and 50 % RH to conditioned state (Stanyl TW341) | severe | Moisture is the largest change: TW341 tensile modulus falls from 3300 MPa dry to 1000 MPa conditioned, and yield stress from 100 MPa to 55.0 MPa.4 |
| Sunlight, hot water or steam, and strong acids or alkalis (Nylatron 4.6 chemical resistance table) | moderate | Nylatron 4.6 rates continuous sunlight and hot water or steam as Limited, and strong acids and strong alkalis as Unacceptable.5 |
| Ionising radiation (Goodfellow listing for nylon 46 rod) | low | Goodfellow rates radiation resistance of nylon 46 rod as Fair, with no dose value.6 |
| Atomic oxygen in low Earth orbit | moderate | NASA's erosion table lists polyamide 6 and polyamide 66 but no polyamide 46 row.7 |
| # | Environment | Details | Test conditions |
|---|---|---|---|
| 1 | Continuous heat in air, unfilled Stanyl TW341 (IEC 60216) | The IDES copy of the DSM datasheet prints a thermal index of 306 °F (152 °C) at 5000 hr (its note 5). This is a life limit, not a single maximum temperature, so long-life parts need a lower service temperature than the deflection temperature. | basis Stanyl TW341 unfilled grade, IEC 60216 index as printedreference DSM Stanyl TW341 datasheet, Thermal table |
| 2 | Continuous heat in air, 50 % glass-filled Stanyl TW241F10 | Envalior prints a thermal index of 177 °C at 5000 hrs (IEC 60216 and ISO 527-1/-2) for TW241F10. The value belongs to the glass-filled grade and is not a test of unfilled PA 46. | basis Stanyl TW241F10, PA46-GF50, 50 % glass fibrereference Envalior Stanyl TW241F10 property data sheet, Other properties |
| 3 | Continuous service in air, unreinforced Nylatron 4.6 | The Nylatron 4.6 sheet prints 149 °C (300 °F) as the continuous maximum service temperature in air, lower than its 160 °C deflection temperature at 1.8 MPa. The deflection value is a short load test, not a service life. | basis Nylatron 4.6, unreinforced nylon 46, continuous use in airreference Mitsubishi Chemical Advanced Materials Nylatron 4.6 ASTM data sheet, Thermal Properties |
| 4 | Humid air and water, from 23 °C and 50 % RH to conditioned state (Stanyl TW341) | Water uptake to equilibrium lowers stiffness and strength. The filled TW241F10 grade shows a smaller fall: its tensile modulus goes from 16000 MPa dry to 10000 MPa conditioned, and Envalior prints a humidity absorption of 1.85 % for it (simulated to ISO 62). | basis Stanyl TW341 unfilled and Stanyl TW241F10 50 % glass-filled, dry against conditioned as printedreference DSM Stanyl TW341 datasheet, Mechanical table; Envalior Stanyl TW241F10 property data sheet, Mechanical and Other properties |
| 5 | Sunlight, hot water or steam, and strong acids or alkalis (Nylatron 4.6 chemical resistance table) | The Nylatron 4.6 table gives a chemical resistance rating of Limited for continuous sunlight and for hot water or steam, and Unacceptable for strong acids at pH 1 to 3 and strong alkalis at pH 11 to 14. Weak acids, alcohols and aliphatic hydrocarbons are rated Limited or Acceptable. No UV exposure test values for PA 46 were read. | basis Nylatron 4.6, unreinforced nylon 46, qualitative ratings as printedreference Mitsubishi Chemical Advanced Materials Nylatron 4.6 ASTM data sheet, Chemical Resistance Properties table |
| 6 | Ionising radiation (Goodfellow listing for nylon 46 rod) | The Goodfellow page gives a qualitative radiation resistance of Fair and no dose figure. It cannot be used as a dose limit for a space part. | basis Nylon 46 rod, as listed on the Goodfellow pagereference Goodfellow nylon 46 rod page, Physical Properties |
| 7 | Atomic oxygen in low Earth orbit | NASA TM-2008-215490 Table I gives erosion yields for PA 6 and PA 66 from MISSE flight samples, and no PA 46 row was found in the report, so no atomic-oxygen value is recorded for PA 46 here. | basis NASA/TM-2008-215490 erosion yield table, polymers listed as printedreference Banks, de Groh and Backus, NASA/TM-2008-215490 |
Risks and side effects
Hazards to people, what happens when a cell overheats, and how the material is handled and stored.
For people
The monomers are the hazard to watch. The polymer SDS was not read, and PubChem's aggregate for 1,4-diaminobutane includes severe skin burns and fatal inhalation.
- Handling
- TW341 prints a suggested maximum moisture of 0.050 % before injection moulding.
- Monomers
- 1,4-diaminobutane carries Danger with H314 (causes severe skin burns and eye damage) in 88.7 % of PubChem notifications, and H330 (fatal if inhaled) in 83.4 %. Adipic acid carries Warning with H319 (serious eye irritation).
If it fails
The failure routes in these sources are water uptake, long-term heat and strong acids and alkalis.
- Water
- TW341 takes up 3.7 % moisture at 50 % RH, and its tensile modulus falls from 3300 MPa dry to 1000 MPa conditioned.
- Heat
- TW341 has a thermal index of 152 °C at 5000 hrs (IEC 60216). Nylatron 4.6 is rated for 149 °C continuous service in air.
- Chemicals
- Nylatron 4.6 rates strong acids and strong alkalis as Unacceptable.
Test details
The original wording and numbers from the sources, for readers who want them.
Failure risks
| Failure | Trigger and consequence |
|---|---|
| Water uptakehigh severity | Use of the unfilled grade in humid air or waterMoisture of 3.7 % at 50 % RH (TW341) and 7.0 % at saturation (Nylatron 4.6) lowers the tensile modulus from 3300 MPa dry to 1000 MPa conditioned in TW341 |
| Long-term heatmoderate severity | Continuous service at elevated temperature in airA thermal index of 152 °C at 5000 hrs for unfilled TW341, and a continuous maximum service temperature in air of 149 °C for Nylatron 4.6 |
| Strong acids and alkalishigh severity | Contact with strong acids at pH 1 to 3, or strong alkalis at pH 11 to 14Nylatron 4.6 is rated Unacceptable for these media, so the part can degrade in service |
Handling and storage
- Dry the pellets before moulding. TW341 prints a suggested maximum moisture of 0.050 % before injection moulding.
- Melt at 300 to 320 °C and set the mould at 80.0 to 120 °C, as TW341 prints for injection moulding.
- Pick the grade for the state you need. The glass-filled TW241F10 grade has a different moisture and stiffness profile from the unfilled TW341 grade.
Supply and geography
How common the raw materials are and where they come from.
Commercial PA 46 resin (Stanyl)
Documents
Datasheets, safety data sheets, papers and standards you can open.
Full record
The complete spore, as stored. Free to reuse under CC-BY-4.0. Images keep the licence shown with each one.
Show the full YAML
spore: profile
id: pa-46
spore_version: 0.2
family: polyamides
name: Polyamide 46 (nylon 46)
abbreviation: PA 46
role: high-heat engineering thermoplastic for moulded gear, housing and structural parts
category: polymers
type: polyamides
summary: |
Polyamide 46 (nylon 46) is a semicrystalline aliphatic polyamide made from 1,4-diaminobutane and adipic acid. Envalior sells it as Stanyl. The unfilled TW341 grade is read here from a copy of the DSM datasheet (copyright 2011) with a melting temperature of 295 °C (ISO 11357-3), a deflection temperature of 190 °C at 1.8 MPa and a thermal index of 152 °C at 5000 h (IEC 60216). Water is the main limit: the TW341 tensile modulus falls from 3300 MPa dry to 1000 MPa conditioned. Mitsubishi's Nylatron 4.6 sheet gives a continuous service temperature in air of 149 °C. No atomic-oxygen erosion yield for PA 46 was found in the NASA table.
best_for: 'Heat-tolerant moulded parts that carry load: TW341 has a deflection temperature of 190 °C at 1.8 MPa, and the 50 % glass-filled TW241F10 grade has 290 °C at 1.80 MPa'
weakest_at: 'Water: TW341 takes up 3.7 % moisture at 50 % RH and its tensile modulus falls from 3300 MPa dry to 1000 MPa conditioned. Strong acids and strong alkalis are rated unacceptable for Nylatron 4.6'
identity:
name: Polyamide 46 (nylon 46)
abbreviation: PA 46
formula: Poly(tetramethylene adipamide), -[NH(CH2)4NH-CO(CH2)4CO]-n, made from 1,4-diaminobutane and adipic acid
cas: 50327-22-5
source: goodfellow-nylon46-rod
where: Common properties table, CAS Number row. The same page prints the formula (C12H22N2)n, which does not match this repeat unit, so it is not used
designations:
- system: Trade name
code: Stanyl
source: stanyl-tw341-pdf
where: Title line, Stanyl TW341
tags:
environments: []
stresses:
- extreme-heat
applications:
- mechanisms
- structures
properties:
- benchmark: density
label: Density, Stanyl TW341 (dry)
value: 1.18
unit: g/cm3
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated, natural
test: ISO 1183
state: dry
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 1183 as printed
status: ground
source: stanyl-tw341-pdf
where: Physical table, Density row, Dry column
- benchmark: density
label: Specific gravity, Nylatron 4.6 (unreinforced)
value: 1.19
unit: g/cm3
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
test: ASTM D792
method: Typical value printed on the Mitsubishi Chemical Advanced Materials Nylatron 4.6 ASTM product data sheet
status: ground
source: nylatron-46-pdf
where: Physical Properties table, Specific Gravity row
- benchmark: moisture_absorption
label: Water absorption at equilibrium, 23 °C, 50 % RH, Stanyl TW341
value: 3.7
unit: '%'
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
humidity: 50 % RH
temperature: 23 °C
test: ISO 62
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 62 as printed
status: ground
source: stanyl-tw341-pdf
where: Physical table, Water Absorption, Equilibrium row, 73 °F (23 °C), 50 % RH
- benchmark: moisture_absorption
label: Water absorption at equilibrium, Goodfellow nylon 46 rod
value: 3.7
unit: '%'
scope: material
conditions:
grade: Nylon 46 rod, as listed on the Goodfellow page
test: not stated on the page
method: Value printed on the Goodfellow nylon 46 rod page; the page gives no test standard or humidity condition
status: ground
source: goodfellow-nylon46-rod
where: Physical Properties table, Water absorption - equilibrium row
- benchmark: moisture_absorption
label: Water absorption, immersion 24 h, Nylatron 4.6
value: 0.6
unit: '%'
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
test: ASTM D570
state: immersion for 24 hours
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D570 as printed
status: ground
source: nylatron-46-pdf
where: Physical Properties table, Water Absorption row, Immersion 24hr
- benchmark: moisture_absorption
label: Water absorption at saturation, Nylatron 4.6
value: 7
unit: '%'
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
test: ASTM D570
state: saturation
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D570 as printed
status: ground
source: nylatron-46-pdf
where: Physical Properties table, Water Absorption at Saturation row
- benchmark: elastic_modulus
label: Tensile modulus, Stanyl TW341 (dry)
value: 3300
unit: MPa
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
test: ISO 527-2
state: dry
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 527-2 as printed
status: ground
source: stanyl-tw341-pdf
where: Mechanical table, Tensile Modulus row, Dry column, 73 °F (23 °C)
- benchmark: elastic_modulus
label: Tensile modulus, Stanyl TW341 (conditioned)
value: 1000
unit: MPa
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
test: ISO 527-2
state: conditioned
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 527-2 as printed
status: ground
source: stanyl-tw341-pdf
where: Mechanical table, Tensile Modulus row, Conditioned column
- benchmark: yield_strength
label: Tensile stress at yield, Stanyl TW341 (dry)
value: 100
unit: MPa
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
test: ISO 527-2
state: dry
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 527-2 as printed
status: ground
source: stanyl-tw341-pdf
where: Mechanical table, Tensile Stress Yield row, Dry column
- benchmark: yield_strength
label: Tensile stress at yield, Stanyl TW341 (conditioned)
value: 55
unit: MPa
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
test: ISO 527-2
state: conditioned
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 527-2 as printed
status: ground
source: stanyl-tw341-pdf
where: Mechanical table, Tensile Stress Yield row, Conditioned column
- benchmark: elongation
label: Nominal tensile strain at break, Stanyl TW341 (dry)
value: 40
unit: '%'
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
test: ISO 527-2
state: dry
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 527-2 as printed; the conditioned value is printed only as more than 50 %
status: ground
source: stanyl-tw341-pdf
where: Mechanical table, Nominal Tensile Strain at Break row, Dry column
- benchmark: flexural_modulus
label: Flexural modulus, Stanyl TW341 (dry)
value: 3000
unit: MPa
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
test: ISO 178
state: dry
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 178 as printed
status: ground
source: stanyl-tw341-pdf
where: Mechanical table, Flexural Modulus row, Dry column
- benchmark: flexural_modulus
label: Flexural modulus, Stanyl TW341 (conditioned)
value: 900
unit: MPa
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
test: ISO 178
state: conditioned
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 178 as printed
status: ground
source: stanyl-tw341-pdf
where: Mechanical table, Flexural Modulus row, Conditioned column
- benchmark: heat_deflection_temperature
label: Deflection temperature at 1.8 MPa, unannealed, Stanyl TW341 (dry)
value: 190
unit: °C
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
load: 1.8 MPa
test: ISO 75-2/A
state: dry, unannealed
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 75-2/A as printed
status: ground
source: stanyl-tw341-pdf
where: Thermal table, Deflection Temperature Under Load, 264 psi (1.8 MPa) Unannealed row
- benchmark: melting_point
label: Melting temperature, Stanyl TW341 (dry)
value: 295
unit: °C
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
test: ISO 11357-3
state: dry
heating_rate: 10 °C/min
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, ISO 11357-3 as printed
status: ground
source: stanyl-tw341-pdf
where: Thermal table, Melting Temperature row, Dry column
- benchmark: dielectric_constant
label: Relative permittivity at 100 Hz, Stanyl TW341 (dry)
value: 3.9
unit: '-'
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
test: IEC 60250
frequency: 100 Hz
state: dry
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, IEC 60250 as printed
status: ground
source: stanyl-tw341-pdf
where: Electrical table, Relative Permittivity, 100 Hz row, Dry column
- benchmark: dielectric_constant
label: Relative permittivity at 100 Hz, Stanyl TW341 (conditioned)
value: 22
unit: '-'
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
test: IEC 60250
frequency: 100 Hz
state: conditioned
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, IEC 60250 as printed
status: ground
source: stanyl-tw341-pdf
where: Electrical table, Relative Permittivity, 100 Hz row, Conditioned column
- benchmark: dielectric_strength
label: Electric strength, Stanyl TW341 (dry)
value: 25
unit: kV/mm
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
test: IEC 60243-1
state: dry
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, kV/mm in parentheses, IEC 60243-1 as printed
status: ground
source: stanyl-tw341-pdf
where: Electrical table, Electric Strength row, Dry column
- benchmark: dielectric_strength
label: Electric strength, Stanyl TW341 (conditioned)
value: 15
unit: kV/mm
scope: material
conditions:
grade: Stanyl TW341, heat stabilised, lubricated
test: IEC 60243-1
state: conditioned
method: Typical value printed on the IDES copy of the DSM Stanyl TW341 datasheet, kV/mm in parentheses, IEC 60243-1 as printed
status: ground
source: stanyl-tw341-pdf
where: Electrical table, Electric Strength row, Conditioned column
- benchmark: ultimate_tensile_strength
label: Tensile strength, Nylatron 4.6 (unreinforced)
value: 103
unit: MPa
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
test: ASTM D638
temperature: 23 °C
state: dry as moulded
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D638 as printed
status: ground
source: nylatron-46-pdf
where: Mechanical Properties table, Tensile Strength row
- benchmark: ultimate_tensile_strength
label: Tensile strength at 65 °C, Nylatron 4.6 (unreinforced)
value: 41.4
unit: MPa
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
test: ASTM D638
temperature: 65 °C
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D638 as printed
status: ground
source: nylatron-46-pdf
where: Mechanical Properties table, Tensile Strength at 65°C (150°F) row
- benchmark: elongation
label: Elongation at break, Nylatron 4.6 (unreinforced)
value: 25
unit: '%'
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
test: ASTM D638
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D638 as printed
status: ground
source: nylatron-46-pdf
where: Mechanical Properties table, Elongation at Break row
- benchmark: elastic_modulus
label: Tensile modulus, Nylatron 4.6 (unreinforced)
value: 3.24
unit: GPa
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
test: ASTM D638
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D638 as printed
status: ground
source: nylatron-46-pdf
where: Mechanical Properties table, Tensile Modulus row
- benchmark: flexural_strength
label: Flexural strength, Nylatron 4.6 (unreinforced)
value: 117
unit: MPa
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
test: ASTM D790
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D790 as printed
status: ground
source: nylatron-46-pdf
where: Mechanical Properties table, Flexural Strength row
- benchmark: flexural_modulus
label: Flexural modulus, Nylatron 4.6 (unreinforced)
value: 3.1
unit: GPa
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
test: ASTM D790
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D790 as printed
status: ground
source: nylatron-46-pdf
where: Mechanical Properties table, Flexural Modulus row
- benchmark: cte
label: Coefficient of linear thermal expansion, Nylatron 4.6 (-40 to 150 °C)
value: 90
unit: µm/m-°C
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
test: ASTM E831
temperature: '-40 to 150 °C'
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM E831 as printed
status: ground
source: nylatron-46-pdf
where: Thermal Properties table, CTE linear row
- benchmark: thermal_conductivity
label: Thermal conductivity, Nylatron 4.6 (unreinforced)
value: 0.303
unit: W/m-K
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet, as printed
status: ground
source: nylatron-46-pdf
where: Thermal Properties table, Thermal Conductivity row
- benchmark: melting_point
label: Melting point, Nylatron 4.6 (crystalline peak)
value: 290
unit: °C
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
test: ASTM D3418
state: crystalline peak
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D3418 as printed
status: ground
source: nylatron-46-pdf
where: Thermal Properties table, Melting Point row
- benchmark: max_service_temp
label: Maximum service temperature in air, continuous, Nylatron 4.6
value: 149
unit: °C
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
state: continuous
environment: air
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet
status: ground
source: nylatron-46-pdf
where: Thermal Properties table, Maximum Service Temperature, Air row
- benchmark: heat_deflection_temperature
label: Deflection temperature at 1.8 MPa, Nylatron 4.6
value: 160
unit: °C
scope: material
conditions:
grade: Nylatron 4.6, unreinforced nylon 46
load: 1.8 MPa
test: ASTM D648
method: Typical value printed on the Nylatron 4.6 ASTM product data sheet, ASTM D648 as printed
status: ground
source: nylatron-46-pdf
where: Thermal Properties table, Deflection Temperature at 1.8 MPa row
- benchmark: elastic_modulus
label: Tensile modulus, Stanyl TW241F10, 50 % glass fibre (dry)
value: 16000
unit: MPa
scope: material
conditions:
grade: Stanyl TW241F10, PA46-GF50, 50 % glass fibre, heat stabilised, lubricated
test: ISO 527-1/-2
state: dry
method: Typical value printed on the Envalior Stanyl TW241F10 property data sheet (print date 2026-01-27), ISO 527-1/-2 as printed
status: ground
source: envalior-tw241f10-pdf
where: Mechanical Properties, Tensile modulus row, DRY / COND column
- benchmark: elastic_modulus
label: Tensile modulus, Stanyl TW241F10, 50 % glass fibre (conditioned)
value: 10000
unit: MPa
scope: material
conditions:
grade: Stanyl TW241F10, PA46-GF50, 50 % glass fibre, heat stabilised, lubricated
test: ISO 527-1/-2
state: conditioned
method: Typical value printed on the Envalior Stanyl TW241F10 property data sheet (print date 2026-01-27), ISO 527-1/-2 as printed
status: ground
source: envalior-tw241f10-pdf
where: Mechanical Properties, Tensile modulus row, DRY / COND column
- benchmark: heat_deflection_temperature
label: Temperature of deflection under load at 1.80 MPa, Stanyl TW241F10, 50 % glass fibre (dry)
value: 290
unit: °C
scope: material
conditions:
grade: Stanyl TW241F10, PA46-GF50, 50 % glass fibre
load: 1.80 MPa
test: ISO 75-1/-2
state: dry
method: Typical value printed on the Envalior Stanyl TW241F10 property data sheet (print date 2026-01-27), ISO 75-1/-2 as printed
status: ground
source: envalior-tw241f10-pdf
where: Thermal Properties, Temp. of deflection under load (1.80 MPa) row
- benchmark: ultimate_tensile_strength
label: Tensile strength, nylon 46 rod, as listed by Goodfellow
value: 55
value_high: 100
unit: MPa
scope: material
conditions:
grade: Nylon 46 rod, as listed on the Goodfellow page
test: not stated on the page
method: Range printed on the Goodfellow nylon 46 rod page; the page gives no test standard or conditioning
status: ground
source: goodfellow-nylon46-rod
where: Mechanical Properties table, Tensile strength row
- benchmark: heat_deflection_temperature
label: Heat deflection temperature at 0.45 MPa, nylon 46 rod, as listed by Goodfellow
value: 220
unit: °C
scope: material
conditions:
grade: Nylon 46 rod, as listed on the Goodfellow page
load: 0.45 MPa
test: not stated on the page
method: Value printed on the Goodfellow nylon 46 rod page; the page gives no test standard
status: ground
source: goodfellow-nylon46-rod
where: Thermal Properties table, Heat-deflection temperature - 0.45MPa row
- benchmark: dielectric_strength
label: Dielectric strength, nylon 46 rod, as listed by Goodfellow
value: 20
unit: kV/mm
scope: material
conditions:
grade: Nylon 46 rod, as listed on the Goodfellow page
test: not stated on the page
method: Value printed on the Goodfellow nylon 46 rod page; the page gives no test standard
status: ground
source: goodfellow-nylon46-rod
where: Electrical Properties table, Dielectric strength row
- benchmark: max_service_temp
label: Upper working temperature range, nylon 46 rod, as listed by Goodfellow
value: 100
value_high: 200
unit: °C
scope: material
conditions:
grade: Nylon 46 rod, as listed on the Goodfellow page
state: upper working temperature
method: Range printed on the Goodfellow nylon 46 rod page; no test or duration is stated
status: ground
source: goodfellow-nylon46-rod
where: Thermal Properties table, Upper working temperature row
corrosion:
- environment: Continuous heat in air, unfilled Stanyl TW341 (IEC 60216)
headline: The TW341 thermal index is 152 °C at 5000 h, for 50 % loss of tensile strength as the IEC 60216 basis.
effect: The IDES copy of the DSM datasheet prints a thermal index of 306 °F (152 °C) at 5000 hr (its note 5). This is a life limit, not a single maximum temperature, so long-life parts need a lower service temperature than the deflection temperature.
rating: moderate
conditions:
basis: Stanyl TW341 unfilled grade, IEC 60216 index as printed
reference: DSM Stanyl TW341 datasheet, Thermal table
source: stanyl-tw341-pdf
where: Thermal table, Thermal Index row, note 5 (5000 hr)
- environment: Continuous heat in air, 50 % glass-filled Stanyl TW241F10
headline: The filled TW241F10 grade has a thermal index of 177 °C at 5000 hrs, higher than the unfilled TW341 value of 152 °C.
effect: Envalior prints a thermal index of 177 °C at 5000 hrs (IEC 60216 and ISO 527-1/-2) for TW241F10. The value belongs to the glass-filled grade and is not a test of unfilled PA 46.
rating: low
conditions:
basis: Stanyl TW241F10, PA46-GF50, 50 % glass fibre
reference: Envalior Stanyl TW241F10 property data sheet, Other properties
source: envalior-tw241f10-pdf
where: Thermal Properties, Thermal Index 5000 hrs row
- environment: Continuous service in air, unreinforced Nylatron 4.6
headline: Nylatron 4.6 gives a maximum service temperature in air of 149 °C for continuous use.
effect: The Nylatron 4.6 sheet prints 149 °C (300 °F) as the continuous maximum service temperature in air, lower than its 160 °C deflection temperature at 1.8 MPa. The deflection value is a short load test, not a service life.
rating: moderate
conditions:
basis: Nylatron 4.6, unreinforced nylon 46, continuous use in air
reference: Mitsubishi Chemical Advanced Materials Nylatron 4.6 ASTM data sheet, Thermal Properties
source: nylatron-46-pdf
where: Thermal Properties table, Maximum Service Temperature, Air row
- environment: Humid air and water, from 23 °C and 50 % RH to conditioned state (Stanyl TW341)
headline: 'Moisture is the largest change: TW341 tensile modulus falls from 3300 MPa dry to 1000 MPa conditioned, and yield stress from 100 MPa to 55.0 MPa.'
effect: 'Water uptake to equilibrium lowers stiffness and strength. The filled TW241F10 grade shows a smaller fall: its tensile modulus goes from 16000 MPa dry to 10000 MPa conditioned, and Envalior prints a humidity absorption of 1.85 % for it (simulated to ISO 62).'
rating: severe
conditions:
basis: Stanyl TW341 unfilled and Stanyl TW241F10 50 % glass-filled, dry against conditioned as printed
reference: DSM Stanyl TW341 datasheet, Mechanical table; Envalior Stanyl TW241F10 property data sheet, Mechanical and Other properties
source: stanyl-tw341-pdf
where: Mechanical table, Tensile Modulus and Tensile Stress Yield rows, Dry and Conditioned columns
- environment: Sunlight, hot water or steam, and strong acids or alkalis (Nylatron 4.6 chemical resistance table)
headline: Nylatron 4.6 rates continuous sunlight and hot water or steam as Limited, and strong acids and strong alkalis as Unacceptable.
effect: The Nylatron 4.6 table gives a chemical resistance rating of Limited for continuous sunlight and for hot water or steam, and Unacceptable for strong acids at pH 1 to 3 and strong alkalis at pH 11 to 14. Weak acids, alcohols and aliphatic hydrocarbons are rated Limited or Acceptable. No UV exposure test values for PA 46 were read.
rating: moderate
conditions:
basis: Nylatron 4.6, unreinforced nylon 46, qualitative ratings as printed
reference: Mitsubishi Chemical Advanced Materials Nylatron 4.6 ASTM data sheet, Chemical Resistance Properties table
source: nylatron-46-pdf
where: Chemical Resistance Properties table, Continuous Sunlight, Hot Water / Steam, Acids Strong and Alkalies Strong rows
- environment: Ionising radiation (Goodfellow listing for nylon 46 rod)
headline: Goodfellow rates radiation resistance of nylon 46 rod as Fair, with no dose value.
effect: The Goodfellow page gives a qualitative radiation resistance of Fair and no dose figure. It cannot be used as a dose limit for a space part.
rating: low
conditions:
basis: Nylon 46 rod, as listed on the Goodfellow page
reference: Goodfellow nylon 46 rod page, Physical Properties
source: goodfellow-nylon46-rod
where: Physical Properties table, Radiation resistance row
- environment: Atomic oxygen in low Earth orbit
headline: NASA's erosion table lists polyamide 6 and polyamide 66 but no polyamide 46 row.
effect: NASA TM-2008-215490 Table I gives erosion yields for PA 6 and PA 66 from MISSE flight samples, and no PA 46 row was found in the report, so no atomic-oxygen value is recorded for PA 46 here.
rating: moderate
conditions:
basis: NASA/TM-2008-215490 erosion yield table, polymers listed as printed
reference: Banks, de Groh and Backus, NASA/TM-2008-215490
source: nasa-tm-2008-215490
where: Table I, polyamide rows (PA 6 and PA 66 only)
risks:
hazards:
- text: '1,4-diaminobutane (putrescine, CID 1045, molar mass 88.15 g/mol): PubChem aggregates 247 company reports to the ECHA C&L Inventory. H302 appears in 89.5 % of notifications that give hazard codes, H314 (causes severe skin burns and eye damage) in 88.7 %, H330 (fatal if inhaled) in 83.4 %, H311 (toxic in contact with skin) and H318 (causes serious eye damage) each in 68 %, H226 (flammable liquid and vapour) in 29.1 %, and H412 in 42.9 %. The signal word is Danger.'
ghs:
- H226
- H290
- H302
- H311
- H314
- H318
- H330
- H412
source: pubchem-putrescine
where: Safety and Hazards, GHS Classification (CID 1045)
- text: 'Adipic acid (CID 196, molar mass 146.14 g/mol): PubChem aggregates 5531 company reports to the ECHA C&L Inventory. H319 (causes serious eye irritation) appears in 95.6 % of notifications that give hazard codes, with the signal word Warning.'
ghs:
- H319
source: pubchem-adipic-acid
where: Safety and Hazards, GHS Classification (CID 196)
failure_risks:
- mode: Water uptake
trigger: Use of the unfilled grade in humid air or water
consequence: Moisture of 3.7 % at 50 % RH (TW341) and 7.0 % at saturation (Nylatron 4.6) lowers the tensile modulus from 3300 MPa dry to 1000 MPa conditioned in TW341
severity: high
source: stanyl-tw341-pdf
where: Physical table, Water Absorption row; Mechanical table, Tensile Modulus row
- mode: Long-term heat
trigger: Continuous service at elevated temperature in air
consequence: A thermal index of 152 °C at 5000 hrs for unfilled TW341, and a continuous maximum service temperature in air of 149 °C for Nylatron 4.6
severity: moderate
source: stanyl-tw341-pdf
where: Thermal table, Thermal Index row, note 5
- mode: Strong acids and alkalis
trigger: Contact with strong acids at pH 1 to 3, or strong alkalis at pH 11 to 14
consequence: Nylatron 4.6 is rated Unacceptable for these media, so the part can degrade in service
severity: high
source: nylatron-46-pdf
where: Chemical Resistance Properties table, Acids Strong and Alkalies Strong rows
side_effects: []
handling:
- text: Dry the pellets before moulding. TW341 prints a suggested maximum moisture of 0.050 % before injection moulding.
source: stanyl-tw341-pdf
where: Injection table, Suggested Max Moisture row
- text: Melt at 300 to 320 °C and set the mould at 80.0 to 120 °C, as TW341 prints for injection moulding.
source: stanyl-tw341-pdf
where: Injection table, Processing (Melt) Temp and Mold Temperature rows
- text: Pick the grade for the state you need. The glass-filled TW241F10 grade has a different moisture and stiffness profile from the unfilled TW341 grade.
source: envalior-tw241f10-pdf
where: Thermal and Other properties, filled grade values
mitigations: []
uses:
- application: mechanisms
device: Electronic foot throttle assemblies
example: The TW341 sheet lists Deere parts that use this grade, including AL162509 FOOT THROTTLE ASSY., ELECTR., AUTO PO and a plastic clip, with AKO-Kunststoffe as the molder.
source: stanyl-tw341-pdf
where: Deere Information, Molder Name and Part Number + Description rows
- application: mechanisms
device: Gears and structural parts (50 % glass fibre)
example: Envalior states that TW241F10 has an excellent track record in gear applications and structural parts.
source: envalior-tw241f10-pdf
where: Opening paragraph of the property data sheet
- application: structures
device: Under-the-hood engine and transmission parts
example: Wikipedia says nylon 46 is used in automotive under-the-hood applications, including engine and transmission, engine-management, air-inlet, brake and air-cooling systems.
source: wikipedia-nylon46
where: Uses section
supply:
- subject: Commercial PA 46 resin (Stanyl)
demand: Wikipedia describes Envalior (formerly DSM) as the only commercial supplier of nylon 46, sold as Stanyl. Full-scale production started in Geleen, Netherlands, in 1990. No volume or country share was read.
routes: Nylon 46 is made by polycondensation of 1,4-diaminobutane and adipic acid (Wikipedia).
producers: []
critical_lists: []
substitutes: []
source: wikipedia-nylon46
where: Chemical Reaction, Producer and History sections
media: []
documents:
- title: Stanyl TW341 Polyamide 46 datasheet, DSM Engineering Plastics, IDES copy (copyright 2011)
type: datasheet
url: https://protolabs.com/media/zkljkqyq/stanyl-tw341.pdf
- title: Nylatron 4.6 ASTM product data sheet, Mitsubishi Chemical Advanced Materials
type: datasheet
url: https://www.polymershapes.com/wp-content/uploads/2020/04/Polymershapes_MitsubishiChemicalAdvancedMaterials_DataSheet-Nylatron-4.6.pdf
- title: Stanyl TW241F10 property data sheet, PA46-GF50, Envalior (print date 2026-01-27)
type: datasheet
url: https://plasticker.de/docs/recybase/1845_1770288239.pdf
- title: Goodfellow nylon 46 rod page
type: database
url: https://www.goodfellow.com/usa/nylon-46-rod-group
- title: Banks, de Groh and Backus, Atomic Oxygen Erosion Yield Predictive Tool for Spacecraft Polymers in Low Earth Orbit, NASA/TM-2008-215490
type: report
url: https://ntrs.nasa.gov/citations/20090011780
- title: PubChem CID 1045, 1,4-diaminobutane (putrescine), GHS classification
type: database
url: https://pubchem.ncbi.nlm.nih.gov/compound/1045
- title: PubChem CID 196, adipic acid, GHS classification
type: database
url: https://pubchem.ncbi.nlm.nih.gov/compound/196
gaps:
- 'No atomic-oxygen erosion yield for PA 46: NASA TM-2008-215490 Table I lists PA 6 and PA 66 only.'
- 'No hydrolysis data and no UV exposure test values for PA 46. UV is limited to the qualitative Nylatron 4.6 rating (continuous sunlight: Limited).'
- No outgassing, thermal-cycling or vacuum data for PA 46 were read.
- The TW341 sheet is an IDES copy with a 2011 copyright line. The current Envalior datasheet for the unfilled grade was not found as a readable page, so TW341 values may be out of date.
- The TW241F10 values are for a 50 % glass-filled grade and are labelled as such. They are not unfilled PA 46 values.
- 'Differences between grades and test methods are kept as separate rows: melting point 295 °C (TW341, ISO 11357-3) and 290 °C (Nylatron 4.6, ASTM D3418); deflection temperature 190 °C (TW341, ISO 75-2/A) and 160 °C (Nylatron 4.6, ASTM D648) and 220 °C at 0.45 MPa (Goodfellow); saturation moisture 7.0 % (Nylatron 4.6) against 3.7 % at 50 % RH (TW341).'
- The Goodfellow page prints the formula (C12H22N2)n, which does not match the nylon 46 repeat unit. The formula in identity is written from the monomers instead, and the CAS number 50327-22-5 is taken from the same page.
- No polymer SDS or GHS record for PA 46 itself was read. The hazard entries are for the monomers 1,4-diaminobutane and adipic acid.
- No producer list or country shares for PA 46 were found. Wikipedia names Envalior as the only commercial supplier, with no volume.
- No producers, country shares or supply data for 1,4-diaminobutane (putrescine) were found.
- No electronics application is claimed. Wikipedia mentions electronics markets without specifics.
- 'Glass transition temperature for TW341 is not recorded: the test standard on the printed sheet is cut off.'
- Yield stress is recorded only for TW341 (unfilled, IDES copy) and not for Nylatron 4.6, whose sheet prints no yield value.
- Search snippets for other Stanyl grades (TW241F3, F6, F8, F12 and TW376) were not read as pages, so no values from them are used.
- Notched Izod, Charpy and volume resistivity of Nylatron 4.6 are not recorded, because their names are not in the property canon or they need a unit conversion that was not checked.
- 'TW341 volume resistivity (printed 1.0E+13 and 1.0E+7 ohm·m, IEC 60093) was read but left out: the printed exponent form does not match the value check, so these two rows are not in the file until the check accepts that form.'
sources:
stanyl-tw341-pdf:
title: Stanyl TW341 Polyamide 46, DSM Engineering Plastics datasheet, IDES copy
id: IDES (The Plastics Web) copy of the DSM Stanyl TW341 datasheet, copyright 2011
url: https://protolabs.com/media/zkljkqyq/stanyl-tw341.pdf
year: 2011
kind: datasheet
license: manufacturer datasheet, linked not reproduced
nylatron-46-pdf:
title: Nylatron 4.6 ASTM product data sheet, Mitsubishi Chemical Advanced Materials
id: Mitsubishi Chemical Advanced Materials Nylatron 4.6 ASTM product data sheet
url: https://www.polymershapes.com/wp-content/uploads/2020/04/Polymershapes_MitsubishiChemicalAdvancedMaterials_DataSheet-Nylatron-4.6.pdf
year: 2020
kind: datasheet
license: manufacturer datasheet, linked not reproduced
envalior-tw241f10-pdf:
title: Stanyl TW241F10 property data sheet, PA46-GF50, Envalior
id: Envalior Stanyl TW241F10 property data sheet (copy on plasticker.de), print date 2026-01-27
url: https://plasticker.de/docs/recybase/1845_1770288239.pdf
year: 2026
kind: datasheet
license: manufacturer datasheet, linked not reproduced
goodfellow-nylon46-rod:
title: Goodfellow nylon 46 rod page
id: goodfellow.com, nylon 46 rod group
url: https://www.goodfellow.com/usa/nylon-46-rod-group
year: 2026
kind: database
license: web page, linked not reproduced
nasa-tm-2008-215490:
title: Atomic Oxygen Erosion Yield Predictive Tool for Spacecraft Polymers in Low Earth Orbit
id: NASA/TM-2008-215490 (Banks, de Groh and Backus, 2008), NTRS 20090011780
url: https://ntrs.nasa.gov/citations/20090011780
year: 2008
kind: report
license: NASA public document
wikipedia-nylon46:
title: Nylon 46, Wikipedia
id: en.wikipedia.org, Nylon 46
url: https://en.wikipedia.org/wiki/Nylon_46
year: 2026
kind: web
license: CC-BY-SA, linked not reproduced
pubchem-putrescine:
title: PubChem CID 1045, 1,4-diaminobutane (putrescine), GHS classification
id: PubChem CID 1045
url: https://pubchem.ncbi.nlm.nih.gov/compound/1045
year: 2026
kind: database
license: public domain, linked not reproduced
pubchem-adipic-acid:
title: PubChem CID 196, hexanedioic acid (adipic acid), GHS classification
id: PubChem CID 196
url: https://pubchem.ncbi.nlm.nih.gov/compound/196
year: 2026
kind: database
license: public domain, linked not reproduced
license: CC-BY-4.0
updated: '2026-10-26'
review:
status: draft
method: assistant
checked_values: 37
unreachable: 0
caveats: 14
note: 'New profile written on 2026-10-26 by an AI assistant from pages read in this run: the IDES copy of the Stanyl TW341 datasheet, the Nylatron 4.6 ASTM data sheet, the Envalior Stanyl TW241F10 property data sheet (copy on plasticker.de), the Goodfellow nylon 46 rod page, NASA TM-2008-215490 (PA 46 not listed), Wikipedia Nylon 46, and PubChem CIDs 1045 and 196 (REST API). Values are as printed. The TW241F10 values are for a 50 % glass-filled grade. Not verified by verify-values in this run.'
story:
recipe:
line: Nylon 46 is made by polycondensation of 1,4-diaminobutane (putrescine) and adipic acid, which gives the 4-6 name (Wikipedia). Its repeat unit is -[NH(CH2)4NH-CO(CH2)4CO]-, with four CH2 groups from each monomer.
parts:
- name: 1,4-diaminobutane (putrescine)
symbol: C4H12N2
molar_mass: 88.15
role: Diamine monomer. Its amine groups react with the acid groups of adipic acid (PubChem CID 1045).
- name: Adipic acid
symbol: C6H10O4
molar_mass: 146.14
role: Diacid monomer that forms the amide links with the diamine (PubChem CID 196).
risk_groups:
- title: For people
lead: The monomers are the hazard to watch. The polymer SDS was not read, and PubChem's aggregate for 1,4-diaminobutane includes severe skin burns and fatal inhalation.
level: 1
verdict: Dry before processing; treat the diamine as toxic
points:
- label: Handling
line: TW341 prints a suggested maximum moisture of 0.050 % before injection moulding.
- label: Monomers
line: 1,4-diaminobutane carries Danger with H314 (causes severe skin burns and eye damage) in 88.7 % of PubChem notifications, and H330 (fatal if inhaled) in 83.4 %. Adipic acid carries Warning with H319 (serious eye irritation).
- title: If it fails
lead: The failure routes in these sources are water uptake, long-term heat and strong acids and alkalis.
points:
- label: Water
line: TW341 takes up 3.7 % moisture at 50 % RH, and its tensile modulus falls from 3300 MPa dry to 1000 MPa conditioned.
- label: Heat
line: TW341 has a thermal index of 152 °C at 5000 hrs (IEC 60216). Nylatron 4.6 is rated for 149 °C continuous service in air.
- label: Chemicals
line: Nylatron 4.6 rates strong acids and strong alkalis as Unacceptable.
why: 'Polyamide 46 is a semicrystalline aliphatic polyamide that Envalior sells as Stanyl. The unfilled TW341 grade has a melting temperature of 295 °C, a deflection temperature of 190 °C at 1.8 MPa and a dry tensile modulus of 3300 MPa. The gap between dry and conditioned is the main thing to read in the table: conditioned TW341 falls to 1000 MPa. Envalior''s glass-filled TW241F10 grade is much stiffer, at 16000 MPa dry.'
uses:
- where: Electronic foot throttle assemblies
line: The TW341 sheet lists Deere foot throttle assembly parts that use this grade, moulded by AKO-Kunststoffe.
- where: Gears and structural parts
line: Envalior says the glass-filled TW241F10 has a track record in gear applications and structural parts. This is a 50 % glass-fibre composite, not the unfilled grade.
- where: Under-the-hood parts
line: Wikipedia lists automotive under-the-hood use for nylon 46, including engine, transmission, brake and air-cooling systems.
can_do:
- label: Heat under load
value: 190 °C at 1.8 MPa
benchmark: heat_deflection_temperature
line: The unfilled TW341 grade has a deflection temperature of 190 °C at 1.8 MPa (ISO 75-2/A), and Nylatron 4.6 gives 160 °C (ASTM D648).
- label: Stiff when dry
value: 16000 MPa tensile modulus
benchmark: elastic_modulus
line: Glass-filled TW241F10 has a dry tensile modulus of 16000 MPa and 10000 MPa conditioned, as printed by Envalior (ISO 527-1/-2).
- label: Long heat life
value: 152 °C thermal index
benchmark: max_service_temp
line: TW341 has a thermal index of 152 °C at 5000 hrs (IEC 60216), and the filled TW241F10 grade has 177 °C at 5000 hrs.
compare: 'The TW341 dry and conditioned rows are one grade in two states, so they show what moisture changes: the modulus falls from 3300 MPa to 1000 MPa. Nylatron 4.6 is a different unreinforced grade and gives 3.24 GPa tensile modulus, 290 °C melting point and 7.0 % water at saturation, so its values are read as examples, not as a ranking. The filled TW241F10 grade shows what 50 % glass fibre does: 16000 MPa dry and 1.85 % humidity absorption. The Goodfellow rod rows give ranges with no test standard printed, so they are kept as examples only.'
compare_rows:
- scope: material
label: Density
benchmark: density
- scope: material
label: Tensile modulus, dry
benchmark: elastic_modulus
- scope: material
label: Water absorption at equilibrium
benchmark: moisture_absorption
- scope: material
label: Deflection temperature at 1.8 MPa
benchmark: heat_deflection_temperature
handling:
- Specify dry or conditioned. The tensile modulus of TW341 falls from 3300 MPa dry to 1000 MPa conditioned.
- Dry the pellets before moulding to 0.050 % moisture or less, as TW341 prints for injection moulding.
- Treat the datasheet values as typical values, as each sheet states, and not as specification limits.
good_for:
- 'Stiff, heat-resistant moulded parts in the dry state: 3300 MPa tensile modulus and 190 °C deflection temperature at 1.8 MPa for TW341.'
- 'Filled gear and structural parts: TW241F10 at 16000 MPa dry and 290 °C at 1.80 MPa (Envalior).'
- 'Known heat life: thermal index 152 °C at 5000 hrs for unfilled TW341, and 177 °C for TW241F10.'
watch_out:
- 'Water: TW341 modulus falls from 3300 MPa dry to 1000 MPa conditioned. Keep the dry state in the design or allow for the loss.'
- Strong acids and alkalis are rated Unacceptable for Nylatron 4.6, and sunlight is rated Limited.
- No atomic-oxygen erosion value for PA 46 was found, so exterior use in low Earth orbit needs its own test.
- The monomer hazards are the ones PubChem reports for the diamine and the acid, not for the polymer.
verdict: 'Polyamide 46 is a high-heat engineering thermoplastic. Unfilled TW341 has a melting temperature of 295 °C, a deflection temperature of 190 °C at 1.8 MPa and a thermal index of 152 °C at 5000 hrs. Water is the main limit: the TW341 tensile modulus falls from 3300 MPa dry to 1000 MPa conditioned. No atomic-oxygen erosion value or UV test value for PA 46 was found, so space use needs a test.'
References
Every number above carries a reference number. Click one to see the source and where in it the value comes from.
| # | Source | Type | Year | Used for |
|---|---|---|---|---|
| Stanyl TW341 Polyamide 46, DSM Engineering Plastics datasheet, IDES copy | datasheet | 2011 | 22 values | |
| Nylatron 4.6 ASTM product data sheet, Mitsubishi Chemical Advanced Materials | datasheet | 2020 | 17 values | |
| Stanyl TW241F10 property data sheet, PA46-GF50, Envalior | datasheet | 2026 | 6 values | |
| Goodfellow nylon 46 rod page | database | 2026 | 7 values | |
| Atomic Oxygen Erosion Yield Predictive Tool for Spacecraft Polymers in Low Earth Orbit | report | 2008 | 1 value | |
| Nylon 46, Wikipedia | web | 2026 | 2 values | |
| PubChem CID 1045, 1,4-diaminobutane (putrescine), GHS classification | database | 2026 | 1 value | |
| PubChem CID 196, hexanedioic acid (adipic acid), GHS classification | database | 2026 | 1 value |