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Steel SAE 51431 vs Steel SAE 51440A
Property comparison of Steel SAE 51431 and Steel SAE 51440A, both carbon steel.
| Property | Steel SAE 51431 | Steel SAE 51440A | Difference |
|---|---|---|---|
| Yield strength | 1,069 MPa | 1,655 MPa | +55% |
| Tensile strength | 1,413 MPa | 1,793 MPa | +27% |
| Elongation | 15 % | 5 % | -67% |
| Elastic modulus | 200,000 MPa | 200,000 MPa | 0% |
| Shear modulus | 769,000 MPa | 769,000 MPa | 0% |
| Poisson ratio | 0.3 | 0.3 | 0% |
| Density | 8,030 kg/m³ | 8,030 kg/m³ | 0% |
| Brinell hardness | 415 HB | 510 HB | +23% |
| Thermal conductivity | 51.9 W/m·K | 51.9 W/m·K | 0% |
| Specific heat | 463 J/kg·K | 463 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 SAE 51440A relative to Steel SAE 51431. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
Steel SAE 51431
- standard
- ANSI
- heat treatment
- tempered at 400 F
Steel SAE 51440A
- standard
- ANSI
- heat treatment
- tempered at 600 F
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