Guides/Comparisons
410 vs 430 stainless steel
410-vs-430-stainless-steelStainless steel 410 and Stainless steel 430 at a glance
This page compares Stainless steel 410 and Stainless steel 430 using only values that carry a source, a test condition and an evidence level. Ranges run across temper, heat treatment and product form, measured at room temperature where the source says so.
- Composition: Chromium (410 11.5 to 13.5%; 430 16 to 18%), Carbon (410 0.08 to 0.15%; 430 up to 0.12%).
- Yield strength: the ranges overlap (410 205 to 1,089 MPa; 430 207 to 386 MPa).
- Tensile strength: the ranges overlap (410 448 to 1,331 MPa; 430 400 to 630 MPa).
- Density: the ranges overlap (410 7.73 to 7.75 g/cm³; 430 7.7 to 7.74 g/cm³).
- Young's modulus: the ranges overlap (410 200 GPa; 430 200 GPa).
- Thermal conductivity: the ranges overlap (410 24.9 W/(m·K); 430 23.9 to 26 W/(m·K)).
- Melting point: the ranges overlap (410 1,482 to 1,532 °C; 430 1,425 to 1,510 °C).
- Service temperature: 430 is higher (410 649 °C; 430 730 to 870 °C), about 1.2 times the midpoint of 410.
- Thermal expansion: the ranges overlap (410 9.9 to 11.6 ppm/K; 430 10.3 to 11.9 ppm/K).
- Yield strength for each unit of density (calculated from each grade's midpoint values): Stainless steel 410 83.6 MPa per g/cm³; Stainless steel 430 38.4 MPa per g/cm³.
"Higher" means the whole range is higher, not just one value. Where a value is a specified minimum, the table says "at least".
Side by side
| Property | Stainless steel 410 | Stainless steel 430 |
|---|---|---|
| Yield strength | 205 to 1,089 MPa | 207 to 386 MPa |
| Tensile strength | 448 to 1,331 MPa | 400 to 630 MPa |
| Density | 7.73 to 7.75 g/cm³ | 7.7 to 7.74 g/cm³ |
| Young's modulus | 200 GPa | 200 GPa |
| Thermal conductivity | 24.9 W/(m·K) | 23.9 to 26 W/(m·K) |
| Melting point | 1,482 to 1,532 °C | 1,425 to 1,510 °C |
| Service temperature | 649 °C | 730 to 870 °C |
| Thermal expansion | 9.9 to 11.6 ppm/K | 10.3 to 11.9 ppm/K |
| Yield strength per densitycalculated | 83.6 MPa per g/cm³ | 38.4 MPa per g/cm³ |
Composition
| Element | Stainless steel 410 | Stainless steel 430 |
|---|---|---|
| Iron | balance | balance |
| Chromium | 11.5 to 13.5% | 16 to 18% |
| Carbon | 0.08 to 0.15% | up to 0.12% |
| Manganese | up to 1% | up to 1% |
| Silicon | up to 1% | up to 1% |
| Nickel | up to 0.75% | up to 0.75% |
| Phosphorus | up to 0.04% | up to 0.04% |
| Sulfur | up to 0.03% | up to 0.03% |
| Molybdenum | not listed | up to 0.5% |
Shares are as printed in the sources, by weight.
When to use which
| Material | Best for | Weakest at |
|---|---|---|
| Stainless steel 410 | Hardened and tempered valve, shaft and fastener parts that need strength and a magnetic response | Chloride, marine and strong-acid service, and toughness after tempering at 482 to 538 C |
| Stainless steel 430 | Sinks, appliance trim and architectural cladding, where economy and moderate corrosion resistance matter more than strength (ATI) | Welds and sea water. Welds lose ductility and corrosion resistance, and the datasheet says the grade is not resistant to sea water (Deutsche Edelstahlwerke) |
Where each is used
| Material | Use |
|---|---|
| Stainless steel 410 | Gate valves and valve components |
| Stainless steel 410 | Nuclear reactor control rod mechanisms |
| Stainless steel 410 | Steam and gas turbine blades and buckets |
| Stainless steel 410 | Aerospace structures and bolts, nuts, springs and fasteners |
| Stainless steel 430 | Architectural trim, industrial roofing and wall cladding |
| Stainless steel 430 | Sinks, sink rims, range hoods, dishwashers and appliance trim |
| Stainless steel 430 | Automotive trim and appliance components |