Steel 12Ch1MF GOST 20072-74 vs Steel 12Ch7G3SL GOST 977-88
Property comparison of Steel 12Ch1MF GOST 20072-74 and Steel 12Ch7G3SL GOST 977-88, both carbon steel.
| Property | Steel 12Ch1MF GOST 20072-74 | Steel 12Ch7G3SL GOST 977-88 | Difference |
|---|---|---|---|
| Yield strength | 255 MPa | 1,079 MPa | +323% |
| Tensile strength | 470 MPa | 1,324 MPa | +182% |
| Elongation | 21 % | 9 % | -57% |
| Elastic modulus | 198,000 MPa | 200,000 MPa | +1% |
| Shear modulus | 77,000 MPa | 77,000 MPa | 0% |
| Poisson ratio | 0.29 | 0.3 | +3% |
| Density | 7,800 kg/m³ | 7,820 kg/m³ | 0% |
| 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 12Ch7G3SL GOST 977-88 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
- standard
- GOST
- heat treatment
- —
- standard
- GOST
- heat treatment
- Quenched and tempered
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