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DIN 30CrV9 vs DIN 31CrMo12
Property comparison of DIN 30CrV9 and DIN 31CrMo12, both carbon steel.
| Property | DIN 30CrV9 | DIN 31CrMo12 | Difference |
|---|---|---|---|
| Yield strength | 600 MPa | 750 MPa | +25% |
| Tensile strength | 800 MPa | 1,000 MPa | +25% |
| Elastic modulus | 206,000 MPa | 206,000 MPa | 0% |
| Shear modulus | 80,000 MPa | 80,000 MPa | 0% |
| Poisson ratio | 0.3 | 0.3 | 0% |
| Density | 7,860 kg/m³ | 7,860 kg/m³ | 0% |
| Thermal conductivity | 61.6 W/m·K | 61.2 W/m·K | -1% |
| Specific heat | 460 J/kg·K | 460 J/kg·K | 0% |
| Coefficient of thermal expansion | 0.000012 1/K | 0.000012 1/K | 0% |
| Melting point | 1,480 °C | 1,480 °C | 0% |
Difference is DIN 31CrMo12 relative to DIN 30CrV9. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
DIN 30CrV9
- standard
- DIN
- heat treatment
- nitrided
DIN 31CrMo12
- standard
- DIN
- heat treatment
- —
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