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DIN Ck40 vs DIN Ck50
Property comparison of DIN Ck40 and DIN Ck50, both carbon steel.
| Property | DIN Ck40 | DIN Ck50 | Difference |
|---|---|---|---|
| Yield strength | 400 MPa | 460 MPa | +15% |
| Tensile strength | 630 MPa | 700 MPa | +11% |
| Elongation | 18 % | 15 % | -17% |
| 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 | 57.8 W/m·K | 54 W/m·K | -7% |
| Specific heat | 462 J/kg·K | 465 J/kg·K | +1% |
| 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 Ck50 relative to DIN Ck40. 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 Ck40
- standard
- DIN
- heat treatment
- heat treated
DIN Ck50
- standard
- DIN
- heat treatment
- face hardened
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