Automotive Malleable Cast Iron vs. S45500 Stainless Steel
Both automotive malleable cast iron and S45500 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is automotive malleable cast iron and the bottom bar is S45500 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 130 to 290 | |
| 280 to 500 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 190 |
| Elongation at Break, % | 1.0 to 10 | |
| 3.4 to 11 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 70 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 350 to 720 | |
| 1370 to 1850 |
| Tensile Strength: Yield (Proof), MPa | 220 to 590 | |
| 1240 to 1700 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 270 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1440 |
| Melting Onset (Solidus), °C | 1370 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Expansion, µm/m-K | 14 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 17 |
| Density, g/cm3 | 7.6 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 3.8 |
| Embodied Energy, MJ/kg | 20 | |
| 57 |
| Embodied Water, L/kg | 45 | |
| 120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 6.8 to 30 | |
| 45 to 190 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 13 to 26 | |
| 48 to 65 |
| Strength to Weight: Bending, points | 14 to 24 | |
| 35 to 42 |
| Thermal Shock Resistance, points | 9.9 to 21 | |
| 48 to 64 |
Alloy Composition
| Carbon (C), % | 2.2 to 2.9 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 11 to 12.5 |
| Copper (Cu), % | 0 | |
| 1.5 to 2.5 |
| Iron (Fe), % | 93.6 to 96.7 | |
| 71.5 to 79.2 |
| Manganese (Mn), % | 0.15 to 1.3 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 7.5 to 9.5 |
| Niobium (Nb), % | 0 | |
| 0 to 0.5 |
| Phosphorus (P), % | 0.020 to 0.15 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.9 to 1.9 | |
| 0 to 0.5 |
| Sulfur (S), % | 0.020 to 0.2 | |
| 0 to 0.030 |
| Tantalum (Ta), % | 0 | |
| 0 to 0.5 |
| Titanium (Ti), % | 0 | |
| 0.8 to 1.4 |