SAE 5140 Carbon Steel (Annealed at 830 °C (1525 T)) vs SAE 5160 Carbon Steel (Normalized at 855 °C (1575 °F))
Property comparison of SAE 5140 Carbon Steel (Annealed at 830 °C (1525 T)) and SAE 5160 Carbon Steel (Normalized at 855 °C (1575 °F)), both carbon steel.
| Property | SAE 5140 Carbon Steel (Annealed at 830 °C (1525 T)) | SAE 5160 Carbon Steel (Normalized at 855 °C (1575 °F)) | Difference |
|---|---|---|---|
| Yield strength | 290 MPa | 650 MPa | +124% |
| Tensile strength | 570 MPa | 1,025 MPa | +80% |
| Elongation | 28.6 % | 18.2 % | -36% |
| Elastic modulus | 200,000 MPa | 200,000 MPa | 0% |
| Shear modulus | 76,923 MPa | 76,923 MPa | 0% |
| Poisson ratio | 0.3 | 0.3 | 0% |
| Density | 7,850 kg/m³ | 7,850 kg/m³ | 0% |
| Brinell hardness | 167 HB | 285 HB | +71% |
| Thermal conductivity | 51.9 W/m·K | 51.9 W/m·K | 0% |
| Specific heat | 462 J/kg·K | 467 J/kg·K | +1% |
| Coefficient of thermal expansion | 0.000012 1/K | 0.000012 1/K | 0% |
| Melting point | 1,480 °C | 1,480 °C | 0% |
| Reduction in area | 57.3 % | 50.7 % | -12% |
Difference is SAE 5160 Carbon Steel (Normalized at 855 °C (1575 °F)) relative to SAE 5140 Carbon Steel (Annealed at 830 °C (1525 T)). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- 5140
- standard
- SAE
- heat treatment
- Annealed at 830 °C (1525 T)
- grade
- 5160
- standard
- SAE
- heat treatment
- Normalized at 855 °C (1575 °F)
About AISI/SAE 51xx chromium steels
51xx grades are chromium spring and bearing steels. 5160 is the standard for leaf springs and torsion bars; 52100 (often classed alongside) is the bearing-grade cousin used for races and balls.
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