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BS 080M30 vs BS 080M40
Property comparison of BS 080M30 and BS 080M40, both carbon steel.
| Property | BS 080M30 | BS 080M40 | Difference |
|---|---|---|---|
| Yield strength | 310 MPa | 355 MPa | +15% |
| Tensile strength | 550 MPa | 625 MPa | +14% |
| Elongation | 18 % | 16 % | -11% |
| 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 | 61.6 W/m·K | 57.8 W/m·K | -6% |
| Specific heat | 460 J/kg·K | 462 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 BS 080M40 relative to BS 080M30. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
BS 080M30
- standard
- BS
BS 080M40
- standard
- BS
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