Steel 12Ch1MF GOST 20072-74 vs Steel 12Ch25N16G7AR GOST 5949-75
Property comparison of Steel 12Ch1MF GOST 20072-74 and Steel 12Ch25N16G7AR GOST 5949-75, both carbon steel.
| Property | Steel 12Ch1MF GOST 20072-74 | Steel 12Ch25N16G7AR GOST 5949-75 | Difference |
|---|---|---|---|
| Yield strength | 255 MPa | 325 MPa | +27% |
| Tensile strength | 470 MPa | 690 MPa | +47% |
| Elongation | 21 % | 40 % | +90% |
| Elastic modulus | 198,000 MPa | 216,000 MPa | +9% |
| Shear modulus | 77,000 MPa | 84,000 MPa | +9% |
| Poisson ratio | 0.29 | 0.29 | 0% |
| Density | 7,800 kg/m³ | 7,670 kg/m³ | -2% |
| Thermal conductivity | 51.9 W/m·K | 51.9 W/m·K | 0% |
| Specific heat | 455 J/kg·K | 455 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 Steel 12Ch25N16G7AR GOST 5949-75 relative to Steel 12Ch1MF GOST 20072-74. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
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- GOST
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- GOST
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