Aluminium 8079 AW-8079

Al-Fe-Si wrought alloy (AlFe1Si): aluminium with 0.7 to 1.3 % iron and 0.05 to 0.3 % silicon, copper and zinc as minor elements · CAS 7429-90-5

Also known as EN name AW-8079, EN name AW-AlFe1Si, ASTM B479

AW-8079 (AlFe1Si) is a wrought aluminium alloy with 0.7 to 1.3 % iron and 0.05 to 0.3 % silicon.

10 sources · Updated 2026-11-01 · CC BY 4.0

Evidence level

2 of 5

Lab-measured

Density

2.72 g/cm3

Strength in H19 foil

170 to 175 MPa

Strength in condition O

45 to 110 MPa

Stiffness

69 to 79 GPa

Recipe, share of the weight

  • Al not statedAluminium
  • Fe not statedIron
  • Si not statedSilicon
  • Cu not statedCopper
  • Zn not statedZinc

Best for

Food-contact foil and thin sheet, where the suppliers describe the alloy as food grade (Euralliage: 'Aluminum for food using')

Weakest at

Strength depends strongly on temper: 45 to 110 MPa in condition O against 170 to 175 MPa in H19 foil. No corrosion or space test data were found.

Risk at a glance

  • People None found. Powder is flammable; foil not classified
  • If it fails No data. No failure risks recorded
  • Corrosion No data. No corrosion data recorded

Quick facts: AW-8079

Key properties of AW-8079
PropertyValueBasis
Density2.6 to 2.9 g/cm³2 sourced values across conditions
Yield strength60 to 155 MPa2 sourced values across conditions
Tensile strength45 to 175 MPa3 sourced values across conditions
Young's modulus69 to 79 GPa1 sourced value

What is the density of Aluminium 8079 (AW-8079)?

Aluminium 8079 (AW-8079) has a density of 2.6 to 2.9 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 yield strength of Aluminium 8079 (AW-8079)?

Aluminium 8079 (AW-8079) has a yield strength of 60 to 155 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 the tensile strength of Aluminium 8079 (AW-8079)?

Aluminium 8079 (AW-8079) has a tensile strength of 45 to 175 MPa. The range covers 3 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 Young's modulus of Aluminium 8079 (AW-8079)?

Aluminium 8079 (AW-8079) has a Young's modulus of 69 to 79 GPa. The source and test conditions are listed in the properties table on this page.

What are the other names and codes for Aluminium 8079 (AW-8079)?

Aluminium 8079 (AW-8079) is also written as EN name AW-8079, EN name AW-AlFe1Si, ASTM B479. Each code is printed in the source listed beside it in the designations table.

What is Aluminium 8079 (AW-8079) used for?

Uses recorded in the sources include Thin sheet for heat exchangers; Food-contact and pharmaceutical foil.

Why it exists

AW-8079 (AlFe1Si) is a wrought aluminium alloy with iron and silicon as its main additions, at 0.7 to 1.3 % iron and 0.05 to 0.3 % silicon. Suppliers offer it mainly as foil and thin sheet, and describe it as food grade. Its strength depends strongly on temper. Condition O is printed with tensile ranges that together run from 45 to 110 MPa, and H19 foil is printed at 170 to 175 MPa tensile with a yield strength of 155 MPa. The profile records those printed numbers as supplier data.

Where it's used

Thin sheet for heat exchangers

Euralliage lists thin sheets, including thin sheets for heat exchangers, among the shapes made from this alloy.

Food-contact and pharmaceutical foil

Stanford Advanced Materials lists packaging foil in tempers O, H22 and H24, and pharmaceutical foil in H14 and H18. This is a terrestrial use, not a space application.

Recipe

Al-Fe-Si wrought alloy (AlFe1Si): aluminium with 0.7 to 1.3 % iron and 0.05 to 0.3 % silicon, copper and zinc as minor elements

AW-8079 (AlFe1Si) is a wrought aluminium alloy. It is mostly aluminium, with iron and silicon as the main additions, and copper and zinc as small minor elements. The composition figures are nominal values printed on the supplier pages, not measured values.

What AW-8079 is made of
IngredientShare of the weightWhat it does
Aluminium Al not stated The base metal. It sets the density and the conductivity of the alloy.
Iron Fe not stated The main addition. It gives the alloy its strength in the annealed and cold-worked tempers.
Silicon Si not stated A minor addition that works with iron to form the AlFe1Si composition.
Copper Cu not stated A trace element, printed as a single value.
Zinc Zn not stated A trace element, printed as a single value.

Weight shares are as printed in the sources.

What it can do

Density

2.72 g/cm3

measured

The density of condition O foil is 2.72 g/cm3 as printed by Mfgrobots. TotalMateria prints 2.6 to 2.9 kg/dm3 for the grade.

Strength in H19 foil

170 to 175 MPa

measured

H19 foil is printed with a tensile strength of 170 to 175 MPa and a yield strength of 155 MPa (labelled RP02).

Strength in condition O

45 to 110 MPa

measured

In condition O the twelve printed tensile ranges run from 45 to 110 MPa at 20 °C. The page does not say which range fits a given product.

Stiffness

69 to 79 GPa

measured

TotalMateria prints a modulus of elasticity of 69 to 79 GPa for the grade over 0 to 30 °C, with the temper not stated.

How it compares

Within this profile set, AW-8079 is an iron-silicon foil alloy rather than a structural alloy. Its strength depends strongly on temper: condition O is printed at 45 to 110 MPa tensile, and H19 foil at 170 to 175 MPa. The sources do not agree on whether the alloy has a full standard. Mfgrobots and TotalMateria cite EN 573-3 and print values, while Euralliage says no mechanical or physical characteristic is specified for it. No like-for-like comparison with other aluminium grades was possible from these sources.

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.

Benchmarks
MeasurementAW-8079
Physical and electrical
Density, condition O foil2.72 g/cm³1
Density, EN AW-8079 (range)2.6 to 2.9 kg/dm32
Other measurements
Tensile strength, condition O (envelope of twelve printed ranges)45 to 110 MPa3
Tensile strength, H19 foil170 to 175 MPa4
Yield strength, H19 foil (printed as RP02)155 MPa5
Tensile strength, EN AW-8079 (temper not printed)45 to 135 MPa6
Yield strength Rp0.2, EN AW-8079 (temper not printed)60 to 65 MPa7
Elongation A, EN AW-8079 (temper not printed)> 1 %8
Modulus of elasticity, EN AW-8079 (range)69 to 79 GPa9
Iron content (nominal chemical composition)0.7 to 1.3 %10
Silicon content (nominal chemical composition)0.05 to 0.3 %11
Copper content (nominal chemical composition)0.05 %12
Zinc content (nominal chemical composition)0.1 %13

Why choose it, and why not

Good for

  • Food-contact foil: suppliers describe the alloy as food grade.
  • Thin sheet for heat exchangers, per the Euralliage shapes list.

Watch out for

  • Strength varies strongly with temper, from 45 to 110 MPa in condition O to 170 to 175 MPa in H19 foil.
  • No corrosion, space or flight test was found for this alloy.
  • The sources disagree on whether a full EN standard covers the alloy.

AW-8079 is an iron-silicon aluminium alloy sold mainly as food-contact foil and thin sheet. Suppliers print a density of 2.72 g/cm3 and temper-dependent strengths. The sources contain no corrosion, space or flight data for the alloy.

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.

Other names and standards
SystemCodes
EN nameAW-8079, AW-AlFe1Si
ASTMB479 (foil product specification named on the supplier page)

Notes

The method, full conditions and any caveat for the numbered rows above.

Notes for the numbered rows
#MeasurementMethodConditionsCaveat
1Density, condition O foilValue printed in the general property table of a supplier product pagegrade AW-8079 Oshape foilunit in source g/cm³—
2Density, EN AW-8079 (range)Range printed in the physical properties table of a materials-data pagegrade EN AW-8079temper not printedunit in source kg/dm³—
3Tensile strength, condition O (envelope of twelve printed ranges)Lowest lower bound and highest upper bound of the twelve ranges printed for condition O at 20.0 °C (45.0 to 110.0 MPa). The page does not say which range applies to a given product.temper Otemperature 20.0 °Cproduct forms foil, sheet, forging, seamless tube (as printed)Twelve separate ranges are printed, from 45.0 - 100.0 to 60.0 - 110.0 MPa. The page does not say which applies to a product.
4Tensile strength, H19 foilRange printed in the mechanical table of a supplier product pagetemper H19shape foilthickness not stated in the row—
5Yield strength, H19 foil (printed as RP02)Value printed in the mechanical table of a supplier product page, with the label printed as RP02 (read as the 0.2 % proof strength)temper H19shape foillabel as printed RP02—
6Tensile strength, EN AW-8079 (temper not printed)Range printed in the mechanical properties table of a materials-data page for the EN AW-8079 entrytemper not printedtemperature 0 - 30 °CThe page does not name the temper for this row. Treat it as a range for the grade, not for one temper.
7Yield strength Rp0.2, EN AW-8079 (temper not printed)Range printed in the mechanical properties table of a materials-data page for the EN AW-8079 entrytemper not printedtemperature 0 - 30 °CThe page does not name the temper for this row, and the tensile and yield rows are not labelled with a product form.
8Elongation A, EN AW-8079 (temper not printed)Lower limit printed in the mechanical properties table of a materials-data page for the EN AW-8079 entrytemper not printedtemperature 0 - 30 °C—
9Modulus of elasticity, EN AW-8079 (range)Range printed in the physical properties table of a materials-data page for the EN AW-8079 entrytemperature 0 - 30 °Ctemper not printed—
10Iron content (nominal chemical composition)Range printed in the chemical composition table of a supplier product pagebasis nominal composition for AW-8079 in condition O, as printed—
11Silicon content (nominal chemical composition)Range printed in the chemical composition table of a supplier product pagebasis nominal composition for AW-8079 in condition O, as printed—
12Copper content (nominal chemical composition)Value printed in the chemical composition table of a supplier product pagebasis single value printed for AW-8079 in condition O—
13Zinc content (nominal chemical composition)Value printed in the chemical composition table of a supplier product pagebasis single value printed for AW-8079 in condition O—

Corrosion and compatibility

What happens when it meets other materials and environments.

Corrosion and compatibility
EnvironmentConcernWhat happens
Air at ambient temperature (general statement about aluminium, not a test of alloy 8079) not rated No corrosion test for AW-8079 was found. The only statement read is the general one about aluminium's oxide film.1
Corrosion details
#EnvironmentDetailsTest conditions
1 Air at ambient temperature (general statement about aluminium, not a test of alloy 8079) Wikipedia says aluminium forms a protective layer of oxide on the surface when exposed to air. The sources read give no corrosion rate, pitting data or environmental test for alloy 8079. basis general statement about aluminium metal, not a test of this alloy

Risks and side effects

Hazards to people, what happens when a cell overheats, and how the material is handled and stored.

For people

The hazard codes found are for aluminium powder. No hazard classification for the rolled alloy was found.

Powder
PubChem lists H250 (catches fire spontaneously if exposed to air) for uncoated aluminium powder and H228 (flammable solid) for coated powder.
Foil
The sources read give no hazard classification for AW-8079 foil.

Food contact

Suppliers describe the alloy as food grade, but the sources do not include a food-contact test.

Supplier wording
Euralliage describes the alloy as 'Aluminum for food using'. Mfgrobots calls it food safe.
Limits
No migration or food-contact test result was found for this alloy.

Handling and storage

Storage
No storage or handling rule for alloy 8079 was found in the sources read.

Test details
The original wording and numbers from the sources, for readers who want them.

Handling and storage

  • No storage or handling rule for alloy 8079 foil was found in the sources read. The Euralliage page describes the alloy as 'Aluminum for food using' and gives no handling advice.

Supply and geography

How common the raw materials are and where they come from.

Aluminium (primary smelter production, 2025e)

Top producers (2025)
China 60.8%, India 5.7%, Russia 5.3%, Canada 4.5%, United Arab Emirates 3.6%
Critical mineral lists
US: listed, EU: listed
Recycling
USGS: in 2025 aluminum recovered from purchased scrap in the United States was about 3.6 million tons, of which about 56% came from new scrap (manufacturing) and 44% from old scrap.
Substitutes
USGS: Glass, paper, plastics, and steel can substitute for aluminum in packaging.; USGS: Copper can replace aluminum in electrical and heat-exchange applications.

Updated