Malleable cast iron 45-7 vs Malleable cast iron
Property comparison of Malleable cast iron 45-7 and Malleable cast iron, both cast iron.
| Property | Malleable cast iron 45-7 | Malleable cast iron | Difference |
|---|---|---|---|
| Yield strength | 260 MPa | 180 MPa | -31% |
| Tensile strength | 441 MPa | 400 MPa | -9% |
| Elongation | 7 % | 4 % | -43% |
| Elastic modulus | 160,000 MPa | 160,000 MPa | 0% |
| Shear modulus | 64,000 MPa | 64,000 MPa | 0% |
| Poisson ratio | 0.25 | 0.27 | +8% |
| Density | 7,160 kg/m³ | 7,160 kg/m³ | 0% |
| Thermal conductivity | 50 W/m·K | 50 W/m·K | 0% |
| Specific heat | 460 J/kg·K | 460 J/kg·K | 0% |
| Coefficient of thermal expansion | 0.000012 1/K | 0.000012 1/K | 0% |
| Melting point | 1,200 °C | 1,200 °C | 0% |
Difference is Malleable cast iron relative to Malleable cast iron 45-7. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- standard
- GOST
- standard
- JIS
About malleable cast iron
Malleable iron is produced by annealing white iron castings to convert the carbon to temper-carbon nodules. The result is more ductile than gray iron and was historically used for pipe fittings, hand tools, and small machine parts. It has largely been displaced by ductile iron for new designs but is still specified for legacy applications.
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