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Steel SAE 1144 vs Steel SAE 1340
Property comparison of Steel SAE 1144 and Steel SAE 1340, both carbon steel.
| Property | Steel SAE 1144 | Steel SAE 1340 | Difference |
|---|---|---|---|
| Yield strength | 627 MPa | 1,593 MPa | +154% |
| Tensile strength | 876 MPa | 1,806 MPa | +106% |
| Elongation | 17 % | 11 % | -35% |
| Elastic modulus | 207,000 MPa | 207,000 MPa | 0% |
| Shear modulus | 79,000 MPa | 79,000 MPa | 0% |
| Poisson ratio | 0.3 | 0.3 | 0% |
| Density | 7,860 kg/m³ | 7,860 kg/m³ | 0% |
| Brinell hardness | 277 HB | 505 HB | +82% |
| Thermal conductivity | 56.3 W/m·K | 57.8 W/m·K | +3% |
| Specific heat | 463 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 SAE 1340 relative to Steel SAE 1144. 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 1144
- standard
- ANSI
- heat treatment
- tempered at 400 F
Steel SAE 1340
- standard
- ANSI
- heat treatment
- tempered at 400 F
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