Austempered Cast Iron vs. EN 1.4020 Stainless Steel
Both austempered cast iron and EN 1.4020 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 24 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 austempered cast iron and the bottom bar is EN 1.4020 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 270 to 490 | |
| 190 to 340 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 200 |
| Elongation at Break, % | 1.1 to 13 | |
| 13 to 34 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 62 to 69 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 860 to 1800 | |
| 770 to 1130 |
| Tensile Strength: Yield (Proof), MPa | 560 to 1460 | |
| 430 to 950 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1390 |
| Melting Onset (Solidus), °C | 1340 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 480 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.9 | |
| 11 |
| Density, g/cm3 | 7.5 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 2.5 |
| Embodied Energy, MJ/kg | 25 | |
| 37 |
| Embodied Water, L/kg | 48 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 19 to 95 | |
| 140 to 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 3970 | |
| 460 to 2290 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 32 to 66 | |
| 28 to 41 |
| Strength to Weight: Bending, points | 27 to 44 | |
| 25 to 32 |
| Thermal Shock Resistance, points | 25 to 53 | |
| 16 to 23 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.050 | |
| 0 |
| Arsenic (As), % | 0 to 0.020 | |
| 0 |
| Carbon (C), % | 3.4 to 3.8 | |
| 0 to 0.15 |
| Chromium (Cr), % | 0 to 0.1 | |
| 16.5 to 19 |
| Copper (Cu), % | 0 to 0.8 | |
| 0 |
| Iron (Fe), % | 89.6 to 94 | |
| 62.8 to 71.8 |
| Magnesium (Mg), % | 0 to 0.040 | |
| 0 |
| Manganese (Mn), % | 0.3 to 0.4 | |
| 11 to 14 |
| Molybdenum (Mo), % | 0 to 0.3 | |
| 0 |
| Nickel (Ni), % | 0 to 2.0 | |
| 0.5 to 2.5 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.45 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.045 |
| Selenium (Se), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 2.3 to 2.7 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.030 |
| Tin (Sn), % | 0 to 0.020 | |
| 0 |
| Vanadium (V), % | 0 to 0.1 | |
| 0 |