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JIS SUM22 vs JIS SUP9
Property comparison of JIS SUM22 and JIS SUP9, both carbon steel.
| Property | JIS SUM22 | JIS SUP9 | Difference |
|---|---|---|---|
| Yield strength | 375 MPa | 1,079 MPa | +188% |
| Tensile strength | 460 MPa | 1,226 MPa | +167% |
| Elongation | 8 % | 9 % | +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 | 64.6 W/m·K | 52.9 W/m·K | -18% |
| Specific heat | 458 J/kg·K | 466 J/kg·K | +2% |
| 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 SUP9 relative to JIS SUM22. 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 SUM22
- standard
- JIS
- heat treatment
- —
JIS SUP9
- standard
- JIS
- heat treatment
- heat treated
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