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JIS S25C vs JIS S40C
Property comparison of JIS S25C and JIS S40C, both carbon steel.
| Property | JIS S25C | JIS S40C | Difference |
|---|---|---|---|
| Yield strength | 300 MPa | 400 MPa | +33% |
| Tensile strength | 480 MPa | 630 MPa | +31% |
| Elongation | 21 % | 18 % | -14% |
| 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 | 63.5 W/m·K | 57.8 W/m·K | -9% |
| Specific heat | 458 J/kg·K | 462 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% |
Difference is JIS S40C relative to JIS S25C. 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 S25C
- standard
- JIS
JIS S40C
- standard
- JIS
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