Alloy Wire International
Datasheet: Stainless Steel 304
Stainless Steel 304
Stainless Steel 304, like 302, has good mechanical properties and corrosion resistance.
Stainless Steel 304 is also known as AISI 304.
Available in all profile options
Key Features
Good mechanical properties and corrosion resistance.
Typical Applications
Springs
Engineered components
Wire mesh
Wire cloth
Hose braiding
Designations
W.NR 1.4301
W.NR 1.4307
UNS S30400
AWS 161
Specifications
ASTM A313
ASTM A580
BS 970
BS 2056
Chemical Composition
| Element | Min % | Max % |
|---|---|---|
| C | – | 0.07 |
| Mn | – | 2.00 |
| P | – | 0.045 |
| S | – | 0.030 |
| Si | – | 1.00 |
| Cr | 17.50 | 19.50 |
| Ni | 8.00 | 10.50 |
| Fe | BAL |
Alloy Details
| Density | Melting Point | Coefficient of Expansion | Modulus of Rigidity | Modulus of Elasticity |
|---|---|---|---|---|
| 8.0 g/cm³ | 1454 °C | 18.2 μm/m °C (20 – 100 °C) | 70.3 kN/mm² | 187.5 kN/mm² |
| 0.289 lb/in³ | 2650 °F | 10.1 x 10-6 in/in °F (70 – 212 °F) | 10196 ksi | 27195 ksi |
Heat treatment of finished parts
| Condition as supplied by AWI | Type | Temperature | Time | Cooling |
|---|---|---|---|---|
| Annealed or Spring Temper | Stress Relieve | 250 °C (480 °F) | 1 Hr | Air |
Properties
| Annealed | ||
|---|---|---|
| Approx. tensile strength | <800 N/mm² | <116 ksi |
| Approx. operating temperature | -200 to +300 °C | -330 to +570 °F |
| Spring Temper | ||
|---|---|---|
| Approx. tensile strength | 1300 – 2200 N/mm² | 189 – 319 ksi |
| Approx. operating temperature | -200 to +300 °C | -330 to +570 °F |
The above tensile strength ranges are typical. If you require different please ask.
