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EN C30 vs EN C40
Property comparison of EN C30 and EN C40, both carbon steel.
| Property | EN C30 | EN C40 | Difference |
|---|---|---|---|
| Yield strength | 350 MPa | 400 MPa | +14% |
| Tensile strength | 550 MPa | 630 MPa | +15% |
| Elongation | 20 % | 18 % | -10% |
| 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 | 57.8 W/m·K | -6% |
| Specific heat | 460 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 C40 relative to EN C30. 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 C30
- standard
- ISO
EN C40
- standard
- ISO
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