Automotive Malleable Cast Iron vs. AWS BAu-3
Automotive malleable cast iron belongs to the iron alloys classification, while AWS BAu-3 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is automotive malleable cast iron and the bottom bar is AWS BAu-3.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 110 |
| Poisson's Ratio | 0.29 | |
| 0.37 |
| Shear Modulus, GPa | 70 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 350 to 720 | |
| 220 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 160 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1030 |
| Melting Onset (Solidus), °C | 1370 | |
| 970 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 300 |
| Thermal Expansion, µm/m-K | 14 | |
| 16 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.6 | |
| 13 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 5.0 |
| Stiffness to Weight: Bending, points | 25 | |
| 13 |
| Strength to Weight: Axial, points | 13 to 26 | |
| 4.9 |
| Strength to Weight: Bending, points | 14 to 24 | |
| 6.4 |
| Thermal Shock Resistance, points | 9.9 to 21 | |
| 8.7 |
Alloy Composition
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| Carbon (C), % | 2.2 to 2.9 | |
| 0 |
| Copper (Cu), % | 0 | |
| 60.9 to 63 |
| Gold (Au), % | 0 | |
| 34.5 to 35.5 |
| Iron (Fe), % | 93.6 to 96.7 | |
| 0 |
| Manganese (Mn), % | 0.15 to 1.3 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 2.5 to 3.5 |
| Phosphorus (P), % | 0.020 to 0.15 | |
| 0 |
| Silicon (Si), % | 0.9 to 1.9 | |
| 0 |
| Sulfur (S), % | 0.020 to 0.2 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.15 |