Steel 30Ch GOST 1577-93 vs Steel 30Ch3S3GML GOST 977-88
Property comparison of Steel 30Ch GOST 1577-93 and Steel 30Ch3S3GML GOST 977-88, both carbon steel.
| Property | Steel 30Ch GOST 1577-93 | Steel 30Ch3S3GML GOST 977-88 | Difference |
|---|---|---|---|
| Yield strength | 650 MPa | 1,472 MPa | +126% |
| Tensile strength | 925 MPa | 1,766 MPa | +91% |
| Elongation | 12 % | 4 % | -67% |
| Elastic modulus | 206,000 MPa | 200,000 MPa | -3% |
| Shear modulus | 80,000 MPa | 77,000 MPa | -4% |
| Poisson ratio | 0.29 | 0.3 | +3% |
| Density | 7,860 kg/m³ | 7,820 kg/m³ | -1% |
| 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 30Ch3S3GML GOST 977-88 relative to Steel 30Ch GOST 1577-93. 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
- Quenched and tempered
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