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EN 34CrMo4 vs EN 37Cr4
Property comparison of EN 34CrMo4 and EN 37Cr4, both carbon steel.
| Property | EN 34CrMo4 | EN 37Cr4 | Difference |
|---|---|---|---|
| Yield strength | 650 MPa | 630 MPa | -3% |
| Tensile strength | 900 MPa | 850 MPa | -6% |
| Elongation | 12 % | 13 % | +8% |
| 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 | 51.9 W/m·K | 51.9 W/m·K | 0% |
| Specific heat | 461 J/kg·K | 462 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 EN 37Cr4 relative to EN 34CrMo4. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
EN 34CrMo4
- standard
- ISO
- heat treatment
- heat treated
EN 37Cr4
- standard
- ISO
- heat treatment
- heat treated
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