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JIS SS400 vs JIS SS490
Property comparison of JIS SS400 and JIS SS490, both carbon steel.
| Property | JIS SS400 | JIS SS490 | Difference |
|---|---|---|---|
| Yield strength | 235 MPa | 275 MPa | +17% |
| Tensile strength | 400 MPa | 490 MPa | +23% |
| 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 | 73 W/m·K | 45.2 W/m·K | -38% |
| Specific heat | 452 J/kg·K | 471 J/kg·K | +4% |
| 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 SS490 relative to JIS SS400. 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 SS400
- standard
- JIS
JIS SS490
- standard
- JIS
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