Steel 40L GOST 977-88 vs Steel 45 GOST 1050-88
Property comparison of Steel 40L GOST 977-88 and Steel 45 GOST 1050-88, both carbon steel.
| Property | Steel 40L GOST 977-88 | Steel 45 GOST 1050-88 | Difference |
|---|---|---|---|
| Yield strength | 294 MPa | 440 MPa | +50% |
| Tensile strength | 520 MPa | 640 MPa | +23% |
| Elongation | 14 % | 6 % | -57% |
| Elastic modulus | 215,000 MPa | 200,000 MPa | -7% |
| Shear modulus | 83,000 MPa | 77,000 MPa | -7% |
| Poisson ratio | 0.3 | 0.3 | 0% |
| Density | 7,810 kg/m³ | 7,810 kg/m³ | 0% |
| Thermal conductivity | 57.8 W/m·K | 55.9 W/m·K | -3% |
| Specific heat | 462 J/kg·K | 464 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 45 GOST 1050-88 relative to Steel 40L GOST 977-88. 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
- normalized
- standard
- GOST
- heat treatment
- Cold working
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