ASTM A288 Class 5 Quenched & Tempered Steel – Properties & Standards
Properties
General
| Property | Temperature | Value | Comment |
|---|---|---|---|
Density | 23.0 °C | 7.8 - 7.9 g/cm³ | Typical for Medium Carbon Steel |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Charpy impact energy | 23.0 °C | 41 J | |
Elastic modulus | 23.0 °C | 200 - 215 GPa | Typical for Medium Carbon Steel |
Elongation A50 | 23.0 °C | 16 % | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Medium Carbon Steel |
Reduction of area | 23.0 °C | 40 % | |
Shear modulus | 23.0 °C | 75 - 80 GPa | Typical for Carbon Steel |
Tensile strength | 23.0 °C | 895 MPa | |
Yield strength Rp0.02 | 23.0 °C | 760 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.32E-5 1/K | Typical for Medium Carbon Steel |
Max service temperature | 500 °C | Typical for Carbon Steel | |
Melting point | 1380 - 1514 °C | Typical for Medium Carbon Steel | |
Specific heat capacity | 23.0 °C | 470 - 520 J/(kg·K) | Typical for Medium Carbon Steel |
Thermal conductivity | 23.0 °C | 21 - 52 W/(m·K) | Typical for Medium Carbon Steel |
Electrical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Electrical resistivity | 23.0 °C | 1.43E-7 - 1.74E-7 Ω·m | Typical for Carbon Steel |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.45 % |
Chromium | 0.7 - 1.25 % |
Manganese | 1 % |
Molybdenum | 0.2 % |
Nickel | 1.65 - 3.5 % |
Phosphorus | 0.03 % |
Silicon | 0.15 - 0.35 % |
Sulfur | 0.02 % |
Vanadium | 0.07 - 0.12 % |
Metal
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