ASTM A240 Grade 348 Heat‑Treated Stainless Steel – Properties & Performance
Properties
General
| Property | Temperature | Value | Comment |
|---|---|---|---|
Density | 23.0 °C | 7.9 - 8.2 g/cm³ | Typical for Austenitic Stainless Steel |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 195 GPa | Typical for Austenitic Stainless Steel |
Elongation A50 | 23.0 °C | 40 % | |
Hardness, Brinell | 23.0 °C | 201 [-] | |
Hardness, Rockwell B | 23.0 °C | 92 [-] | |
Poisson's ratio | 23.0 °C | 0.3 [-] | Typical for Austenitic Stainless Steel |
Shear modulus | 23.0 °C | 77 GPa | Typical for Austenitic Stainless Steel |
Tensile strength | 23.0 °C | 515 MPa | |
Yield strength Rp0.2 | 23.0 °C | 205 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.7E-5 - 1.9E-5 1/K | Typical for Austenitic Stainless Steel |
Melting point | 1230 - 1480 °C | Typical for Austenitic Stainless Steel | |
Specific heat capacity | 23.0 °C | 440 J/(kg·K) | Typical for Austenitic Stainless Steel |
Thermal conductivity | 23.0 °C | 11 - 21 W/(m·K) | Typical for Austenitic Stainless Steel |
Electrical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Electrical resistivity | 23.0 °C | 8.5E-7 Ω·m | Typical for Austenitic Stainless Steel |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.08 % |
Chromium | 17 - 19 % |
Manganese | 2 % |
Nickel | 9 - 13 % |
Phosphorus | 0.05 % |
Silicon | 0.75 % |
Sulfur | 0.03 % |
Metal
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