Stainless Steel 301A
Material Data Sheet
Type 301 is an austenitic chromium-nickel stainless steel that is available in the annealed and cold worked conditions. In the annealed condition, Type 301 offers the highest level of stretch formability of any stainless steel and in the heavily cold worked condition offers the highest strength level of any 300 series stainless steel. Type 301 is non-magnetic in the annealed condition but becomes magnetic as a result of cold working.
Chemical Composition
| Element | Content(%) |
|---|---|
| Iron, Fe | Balance |
| Chromium, Cr | 16.00 – 18.00 |
| Nickel, Ni | 6.00 – 8.00 |
| Nitrogen, N | ≤0.030 |
| Carbon, C | ≤0.15 |
| Manganese, Mn | ≤2.00 |
| Phosphorus, P | ≤0.045 |
| Sulfur, S | ≤0.030 |
| Silicon, Si | ≤0.75 | Nitrogen, N | ≤0.10 |
Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 4.48 g/cm3 | 0.161 lb/in3 |
| Melting Point | 1700°C | 3090°F |
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Hardness, Brinell | 217 | 217 |
| Tensile Strength, Ultimate | 515 MPa | 74700 psi |
| Tensile Strength, Yield | 205 MPa | 29700 psi |
| Elongation at Break | 40% | 40% |
| Modulus of Elasticity | 212 GPa | 30700 ksi |
Thermal Properties
| Properties | Metric | Imperial |
|---|---|---|
| CTE, linear | 16.6 µm/m-°C | 9.22 µin/in-°F |
| Specific Heat Capacity | 0.500 J/g-°C | 0.120 BTU/lb-°F |
| Thermal Conductivity | 16.3 W/m-K | 113 BTU-in/hr-ft²-°F |
Applications
Stainless Steel 301A is used in the following application areas:
- Making rail car structural components
- Air frame sections
- Highway trailer components
- Automotive wheel covers
- Wiper blade clips and holders
- Stove element clips
- Screen frames
- Toaster springs
- Curtain walls
Key Words: ASTM A240 and ASME SA240
