Steel 40G GOST 1050-88 vs Steel 40G2 GOST 4543-71
Property comparison of Steel 40G GOST 1050-88 and Steel 40G2 GOST 4543-71, both carbon steel.
| Property | Steel 40G GOST 1050-88 | Steel 40G2 GOST 4543-71 | Difference |
|---|---|---|---|
| Yield strength | 590 MPa | 950 MPa | +61% |
| Tensile strength | 840 MPa | 1,120 MPa | +33% |
| Elastic modulus | 204,000 MPa | 212,000 MPa | +4% |
| Shear modulus | 79,000 MPa | 82,000 MPa | +4% |
| Poisson ratio | 0.29 | 0.29 | 0% |
| Density | 7,810 kg/m³ | 7,800 kg/m³ | 0% |
| Thermal conductivity | 57.8 W/m·K | 57.8 W/m·K | 0% |
| Specific heat | 462 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 Steel 40G2 GOST 4543-71 relative to Steel 40G GOST 1050-88. 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
- Quenching and cooling in the water
- standard
- GOST
- heat treatment
- Quenching and cooling in the oil
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