SAE 1108 Carbon Steel (Cold Drawn) vs SAE 1109 Carbon Steel (Cold Drawn)
Property comparison of SAE 1108 Carbon Steel (Cold Drawn) and SAE 1109 Carbon Steel (Cold Drawn), both carbon steel.
| Property | SAE 1108 Carbon Steel (Cold Drawn) | SAE 1109 Carbon Steel (Cold Drawn) | Difference |
|---|---|---|---|
| Yield strength | 325 MPa | 325 MPa | 0% |
| Tensile strength | 385 MPa | 385 MPa | 0% |
| Elongation | 20 % | 20 % | 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 | 121 HB | 121 HB | 0% |
| Thermal conductivity | 70 W/m·K | 69.6 W/m·K | -1% |
| Specific heat | 454 J/kg·K | 454 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 1109 Carbon Steel (Cold Drawn) relative to SAE 1108 Carbon Steel (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
- 1108
- standard
- SAE
- heat treatment
- Cold Drawn
- grade
- 1109
- standard
- SAE
- heat treatment
- Cold Drawn
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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