Steel 12DN2FL GOST 977-88 vs Steel 12MCh GOST 20072-74
Property comparison of Steel 12DN2FL GOST 977-88 and Steel 12MCh GOST 20072-74, both carbon steel.
| Property | Steel 12DN2FL GOST 977-88 | Steel 12MCh GOST 20072-74 | Difference |
|---|---|---|---|
| Yield strength | 638 MPa | 235 MPa | -63% |
| Tensile strength | 785 MPa | 410 MPa | -48% |
| Elongation | 12 % | 21 % | +75% |
| Elastic modulus | 200,000 MPa | 212,000 MPa | +6% |
| Shear modulus | 77,000 MPa | 82,000 MPa | +6% |
| Poisson ratio | 0.3 | 0.29 | -3% |
| 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 | 455 J/kg·K | 455 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 12MCh GOST 20072-74 relative to Steel 12DN2FL 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
- —
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