ASTM A470 Grade D Class 8 Double-Normalized and Tempered
Equivalent material: UNS K23010
ASTM A470 Grade D Class 8 Double-Normalized and Tempered general
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Density | 23.0 °C | Density of 7.8 - 7.9 g/cm³ | Typical for Chromium Molybdenum Steel |
ASTM A470 Grade D Class 8 Double-Normalized and Tempered thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Coefficient of thermal expansion | 23.0 °C | Coefficient of thermal expansion of 1.1E-5 - 1.4E-5 1/K | Typical for Chromium Molybdenum Steel |
| Melting point | - | Melting point of 1382 - 1529 °C | Typical for Chromium Molybdenum Steel |
| Specific heat capacity | 23.0 °C | Specific heat capacity of 448 - 502 J/(kg·K) | Typical for Chromium Molybdenum Steel |
| Thermal conductivity | 23.0 °C | Thermal conductivity of 36 - 43 W/(m·K) | Typical for Chromium Molybdenum Steel |
ASTM A470 Grade D Class 8 Double-Normalized and Tempered chemical
| Property | Value |
|---|---|
| Aluminium | Aluminium of 0.015 % |
| Carbon | Carbon of 0.25 - 0.35 % |
| Chromium | Chromium of 1.05 - 1.5 % |
| Manganese | Manganese of 1 % |
| Molybdenum | Molybdenum of 1 - 1.5 % |
| Nickel | Nickel of 0.75 % |
| Phosphorus | Phosphorus of 0.01 % |
| Sulfur | Sulfur of 0.015 % |
| Vanadium | Vanadium of 0.2 - 0.3 % |
ASTM A470 Grade D Class 8 Double-Normalized and Tempered mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Charpy impact energy | 23.0 °C | Charpy impact energy of 8 J | - |
| Elastic modulus | 23.0 °C | Elastic modulus of 200 - 215 GPa | Typical for Chromium Molybdenum Steel |
| Elongation A50 | 23.0 °C | Elongation A50 of 17 % | - |
| Poisson's ratio | 23.0 °C | Poisson's ratio of 0.29 [-] | Typical for Chromium Molybdenum Steel |
| Reduction of area | 23.0 °C | Reduction of area of 43 % | - |
| Tensile strength | 23.0 °C | Tensile strength of 725 - 860 MPa | - |
| Yield strength | 23.0 °C | Yield strength of 585 MPa | - |
| Yield strength Rp0.02 | 23.0 °C | Yield strength Rp0.02 of 585 MPa | - |
| Yield strength Rp0.2 | 23.0 °C | Yield strength Rp0.2 of 620 MPa | - |
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