Steel 12Ch25N16G7AR GOST 5949-75 vs Steel 12ChN2 GOST 4543-71
Property comparison of Steel 12Ch25N16G7AR GOST 5949-75 and Steel 12ChN2 GOST 4543-71, both carbon steel.
| Property | Steel 12Ch25N16G7AR GOST 5949-75 | Steel 12ChN2 GOST 4543-71 | Difference |
|---|---|---|---|
| Yield strength | 325 MPa | 600 MPa | +85% |
| Tensile strength | 690 MPa | 800 MPa | +16% |
| Elastic modulus | 216,000 MPa | 211,000 MPa | -2% |
| Shear modulus | 84,000 MPa | 82,000 MPa | -2% |
| Poisson ratio | 0.29 | 0.29 | 0% |
| Density | 7,670 kg/m³ | 7,880 kg/m³ | +3% |
| 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 12ChN2 GOST 4543-71 relative to Steel 12Ch25N16G7AR GOST 5949-75. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- standard
- GOST
- heat treatment
- —
- standard
- GOST
- heat treatment
- Case hardening,quenching and cooling in the oil
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