Steel 30ChN3A GOST 4543-71 vs Steel 30G GOST 1050-88
Property comparison of Steel 30ChN3A GOST 4543-71 and Steel 30G GOST 1050-88, both carbon steel.
| Property | Steel 30ChN3A GOST 4543-71 | Steel 30G GOST 1050-88 | Difference |
|---|---|---|---|
| Yield strength | 785 MPa | 560 MPa | -29% |
| Tensile strength | 980 MPa | 680 MPa | -31% |
| 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 | 7,850 kg/m³ | 7,810 kg/m³ | -1% |
| Thermal conductivity | 51.9 W/m·K | 61.6 W/m·K | +19% |
| 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 30G GOST 1050-88 relative to Steel 30ChN3A 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
- —
- standard
- GOST
- heat treatment
- Quenching and cooling in the water
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