Steel 38ChS GOST 4543-71 vs Steel 40 GOST 1050-88
Property comparison of Steel 38ChS GOST 4543-71 and Steel 40 GOST 1050-88, both carbon steel.
| Property | Steel 38ChS GOST 4543-71 | Steel 40 GOST 1050-88 | Difference |
|---|---|---|---|
| Yield strength | 750 MPa | 380 MPa | -49% |
| Tensile strength | 950 MPa | 610 MPa | -36% |
| Elastic modulus | 211,000 MPa | 212,000 MPa | 0% |
| Shear modulus | 82,000 MPa | 82,000 MPa | 0% |
| Poisson ratio | 0.29 | 0.29 | 0% |
| Density | 7,640 kg/m³ | 7,850 kg/m³ | +3% |
| Thermal conductivity | 51.9 W/m·K | 57.8 W/m·K | +11% |
| 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 40 GOST 1050-88 relative to Steel 38ChS GOST 4543-71. 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
- Improved
- standard
- GOST
- heat treatment
- Cold working
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