Steel 18ChGT GOST 4543-71 vs Steel 20 GOST 1050-88
Property comparison of Steel 18ChGT GOST 4543-71 and Steel 20 GOST 1050-88, both carbon steel.
| Property | Steel 18ChGT GOST 4543-71 | Steel 20 GOST 1050-88 | Difference |
|---|---|---|---|
| Yield strength | 800 MPa | 240 MPa | -70% |
| Tensile strength | 1,000 MPa | 390 MPa | -61% |
| Elongation | 9 % | 21 % | +133% |
| 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 | 7,800 kg/m³ | 7,859 kg/m³ | +1% |
| Thermal conductivity | 51.9 W/m·K | 65.4 W/m·K | +26% |
| Specific heat | 457 J/kg·K | 457 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 20 GOST 1050-88 relative to Steel 18ChGT 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
- Case hardening,quenching and cooling in the oil
- standard
- GOST
- heat treatment
- Annealing or high tempering
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