Steel 30Ch3S3GML GOST 977-88 vs Steel 30ChGS GOST 4543-71
Property comparison of Steel 30Ch3S3GML GOST 977-88 and Steel 30ChGS GOST 4543-71, both carbon steel.
| Property | Steel 30Ch3S3GML GOST 977-88 | Steel 30ChGS GOST 4543-71 | Difference |
|---|---|---|---|
| Yield strength | 1,472 MPa | 835 MPa | -43% |
| Tensile strength | 1,766 MPa | 1,080 MPa | -39% |
| Elongation | 4 % | 10 % | +150% |
| Elastic modulus | 200,000 MPa | 213,000 MPa | +7% |
| Shear modulus | 77,000 MPa | 82,000 MPa | +6% |
| Poisson ratio | 0.3 | 0.3 | 0% |
| Density | 7,820 kg/m³ | 7,850 kg/m³ | 0% |
| Thermal conductivity | 51.9 W/m·K | 51.9 W/m·K | 0% |
| Specific heat | 460 J/kg·K | 460 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 30ChGS GOST 4543-71 relative to Steel 30Ch3S3GML 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
- Quenched and tempered
- standard
- GOST
- heat treatment
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