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JIS S45C vs JIS S55C
Property comparison of JIS S45C and JIS S55C, both carbon steel.
| Property | JIS S45C | JIS S55C | Difference |
|---|---|---|---|
| Yield strength | 430 MPa | 500 MPa | +16% |
| Tensile strength | 650 MPa | 750 MPa | +15% |
| Elongation | 16 % | 14 % | -13% |
| Elastic modulus | 206,000 MPa | 206,000 MPa | 0% |
| Shear modulus | 80,000 MPa | 80,000 MPa | 0% |
| Poisson ratio | 0.3 | 0.3 | 0% |
| Density | 7,860 kg/m³ | 7,860 kg/m³ | 0% |
| Thermal conductivity | 55.9 W/m·K | 52.9 W/m·K | -5% |
| Specific heat | 464 J/kg·K | 466 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 JIS S55C relative to JIS S45C. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
JIS S45C
- standard
- JIS
JIS S55C
- standard
- JIS
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