SAE 1070 Carbon Steel (Spheroidized annealed, cold drawn) vs SAE 1078 Carbon Steel (Hot rolled)
Property comparison of SAE 1070 Carbon Steel (Spheroidized annealed, cold drawn) and SAE 1078 Carbon Steel (Hot rolled), both carbon steel.
| Property | SAE 1070 Carbon Steel (Spheroidized annealed, cold drawn) | SAE 1078 Carbon Steel (Hot rolled) | Difference |
|---|---|---|---|
| Yield strength | 495 MPa | 380 MPa | -23% |
| Tensile strength | 640 MPa | 690 MPa | +8% |
| Elongation | 10 % | 12 % | +20% |
| 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 | 192 HB | 207 HB | +8% |
| Thermal conductivity | 49.6 W/m·K | 47.8 W/m·K | -4% |
| Specific heat | 468 J/kg·K | 469 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 | 45 % | 30 % | -33% |
Difference is SAE 1078 Carbon Steel (Hot rolled) relative to SAE 1070 Carbon Steel (Spheroidized annealed, cold drawn). 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
- 1070
- standard
- SAE
- heat treatment
- Spheroidized annealed, cold drawn
- grade
- 1078
- standard
- SAE
- heat treatment
- Hot rolled
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