Steel 40G GOST 1050-88 vs Steel 40L GOST 977-88
Property comparison of Steel 40G GOST 1050-88 and Steel 40L GOST 977-88, both carbon steel.
| Property | Steel 40G GOST 1050-88 | Steel 40L GOST 977-88 | Difference |
|---|---|---|---|
| Yield strength | 590 MPa | 294 MPa | -50% |
| Tensile strength | 840 MPa | 520 MPa | -38% |
| Elastic modulus | 204,000 MPa | 215,000 MPa | +5% |
| Shear modulus | 79,000 MPa | 83,000 MPa | +5% |
| Poisson ratio | 0.29 | 0.3 | +3% |
| Density | 7,810 kg/m³ | 7,810 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 40L GOST 977-88 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
- normalized
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