SAE 1145 Carbon Steel (Hot rolled) vs SAE 1146 Carbon Steel (Hot rotted)
Property comparison of SAE 1145 Carbon Steel (Hot rolled) and SAE 1146 Carbon Steel (Hot rotted), both carbon steel.
| Property | SAE 1145 Carbon Steel (Hot rolled) | SAE 1146 Carbon Steel (Hot rotted) | Difference |
|---|---|---|---|
| Yield strength | 325 MPa | 325 MPa | 0% |
| Tensile strength | 585 MPa | 585 MPa | 0% |
| Elongation | 15 % | 15 % | 0% |
| 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 | 170 HB | 170 HB | 0% |
| Thermal conductivity | 55.9 W/m·K | 55.5 W/m·K | -1% |
| Specific heat | 464 J/kg·K | 464 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% |
| Reduction in area | 40 % | 40 % | 0% |
Difference is SAE 1146 Carbon Steel (Hot rotted) relative to SAE 1145 Carbon Steel (Hot rolled). 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
- 1145
- standard
- SAE
- heat treatment
- Hot rolled
- grade
- 1146
- standard
- SAE
- heat treatment
- Hot rotted
About AISI/SAE 11xx free-machining carbon steels
11xx grades are resulfurized plain-carbon steels designed for high-volume machining. The added sulfur breaks chips and improves tool life at the cost of weldability and ductility. 1144 is the most common grade for shafts, studs, and screw-machine parts.
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