ASTM A320 Grade B8M Class 2 – Carbide Solution‑Treated & Strain‑Hardened Stainless Steel
Properties
General
| Property | Temperature | Value | Comment |
|---|---|---|---|
Density | 20.0 °C | 7.9 - 8.2 g/cm³ | Typical for Austenitic Stainless Steel |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 195 GPa | Typical for Austenitic Stainless Steel |
Elongation A50 | 20.0 °C | 15 - 30 % | |
Hardness, Brinell | 20.0 °C | 321 [-] | |
Hardness, Rockwell C | 20.0 °C | 35 [-] | |
Poisson's ratio | 20.0 °C | 0.3 [-] | Typical for Austenitic Stainless Steel |
Reduction of area | 20.0 °C | 45 % | |
Tensile strength | 20.0 °C | 620 - 760 MPa | |
Yield Strength Rp0.2, short transverse | 20.0 °C | 345 - 655 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 20.0 °C | 1.7E-5 - 1.9E-5 1/K | Typical for Austenitic Stainless Steel |
Melting point | 1375 - 1450 °C | Typical for Austenitic Stainless Steel | |
Specific heat capacity | 20.0 °C | 440 J/(kg·K) | Typical for Austenitic Stainless Steel |
Thermal conductivity | 20.0 °C | 11 - 21 W/(m·K) | Typical for Austenitic Stainless Steel |
Electrical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Electrical resistivity | 20.0 °C | 8.5E-7 Ω·m | Typical for Austenitic Stainless Steel |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.08 % |
Chromium | 16 - 18 % |
Manganese | 2 % |
Molybdenum | 2 - 3 % |
Nickel | 10 - 14 % |
Phosphorus | 0.05 % |
Silicon | 1 % |
Sulfur | 0.03 % |
Metal
- ASTM A320 Grade B8C Class 2 – Carbide Solution Treated & Strain Hardened Steel
- ASTM A320 Grade B8F Class 2 – Carbide Solution Treated & Strain Hardened Stainless Steel
- ASTM A320 Grade B8M Class 1 Stainless Steel – Carbide Solution Treated
- ASTM A320 Grade B8 Class 1 – Carbide Solution Treated Stainless Steel
- ASTM A320 Grade B8P Class 2 Stainless Steel – Carbide Solution Treated & Strain Hardened
- ASTM A320 Grade B8T Class 2 – Carbide Solution Treated & Strain-Hardened Stainless Steel
- ASTM A193 Grade B8M2 Class 2B – Carbide Solution‑Treated, Strain‑Hardened (≤ M48)
- ASTM A193 Grade B8M3 Class 2C Stainless Steel – Carbide‑Solution Treated & Strain Hardened, M48 & Below
- ASTM A193 Grade B8M Class 2: Carbide-Treated, Strain-Hardened M20 and Smaller Steel Components
- ASTM A193 Grade B8 Class 2: Carbide-Solution Treated & Strain-Hardened, Ideal for M20 and Smaller Applications