Steel 40ChN GOST 4543-71 vs Steel 40G GOST 1050-88
Property comparison of Steel 40ChN GOST 4543-71 and Steel 40G GOST 1050-88, both carbon steel.
| Property | Steel 40ChN GOST 4543-71 | Steel 40G GOST 1050-88 | Difference |
|---|---|---|---|
| Yield strength | 1,000 MPa | 590 MPa | -41% |
| Tensile strength | 1,200 MPa | 840 MPa | -30% |
| Elastic modulus | 200,000 MPa | 204,000 MPa | +2% |
| Shear modulus | 77,000 MPa | 79,000 MPa | +3% |
| Poisson ratio | 0.3 | 0.29 | -3% |
| Density | 7,850 kg/m³ | 7,810 kg/m³ | -1% |
| 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 40G GOST 1050-88 relative to Steel 40ChN 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
- Quenching and cooling in the oil
- standard
- GOST
- heat treatment
- Quenching and cooling in the water
What else is in Engineering Database
AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.
Get started for free ↗Reference Data375 engineering tablesMaterial properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.
Browse dataCalculatorsDeterministic engineering calculatorsSizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.
Browse calculators