AISI 422 Stainless Steel vs. Automotive Malleable Cast Iron
Both AISI 422 stainless steel and automotive malleable cast iron are iron alloys. They have 85% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is AISI 422 stainless steel and the bottom bar is automotive malleable cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 260 to 330 | |
| 130 to 290 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 180 |
| Elongation at Break, % | 15 to 17 | |
| 1.0 to 10 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 70 |
| Tensile Strength: Ultimate (UTS), MPa | 910 to 1080 | |
| 350 to 720 |
| Tensile Strength: Yield (Proof), MPa | 670 to 870 | |
| 220 to 590 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 260 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1410 |
| Melting Onset (Solidus), °C | 1470 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 24 | |
| 41 |
| Thermal Expansion, µm/m-K | 10 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.7 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 5.3 | |
| 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 1.9 |
| Density, g/cm3 | 7.9 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 3.1 | |
| 1.5 |
| Embodied Energy, MJ/kg | 44 | |
| 20 |
| Embodied Water, L/kg | 100 | |
| 45 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 150 | |
| 6.8 to 30 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1140 to 1910 | |
| 130 to 950 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 32 to 38 | |
| 13 to 26 |
| Strength to Weight: Bending, points | 26 to 30 | |
| 14 to 24 |
| Thermal Diffusivity, mm2/s | 6.4 | |
| 11 |
| Thermal Shock Resistance, points | 33 to 39 | |
| 9.9 to 21 |
Alloy Composition
| Carbon (C), % | 0.2 to 0.25 | |
| 2.2 to 2.9 |
| Chromium (Cr), % | 11 to 12.5 | |
| 0 |
| Iron (Fe), % | 81.9 to 85.8 | |
| 93.6 to 96.7 |
| Manganese (Mn), % | 0.5 to 1.0 | |
| 0.15 to 1.3 |
| Molybdenum (Mo), % | 0.9 to 1.3 | |
| 0 |
| Nickel (Ni), % | 0.5 to 1.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0.020 to 0.15 |
| Silicon (Si), % | 0 to 0.5 | |
| 0.9 to 1.9 |
| Sulfur (S), % | 0 to 0.025 | |
| 0.020 to 0.2 |
| Tungsten (W), % | 0.9 to 1.3 | |
| 0 |
| Vanadium (V), % | 0.2 to 0.3 | |
| 0 |