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JIS SCr430 vs JIS SCr440
Property comparison of JIS SCr430 and JIS SCr440, both carbon steel.
| Property | JIS SCr430 | JIS SCr440 | Difference |
|---|---|---|---|
| Yield strength | 570 MPa | 640 MPa | +12% |
| Tensile strength | 770 MPa | 880 MPa | +14% |
| Elongation | 14 % | 12 % | -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 | 51.9 W/m·K | 51.9 W/m·K | 0% |
| Specific heat | 457 J/kg·K | 457 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 SCr440 relative to JIS SCr430. 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 SCr430
- standard
- JIS
JIS SCr440
- standard
- JIS
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