S45000 Stainless Steel vs. Austempered Cast Iron
Both S45000 stainless steel and austempered cast iron are iron alloys. They have 78% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is S45000 stainless steel and the bottom bar is austempered cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 280 to 410 | |
| 270 to 490 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 180 |
| Elongation at Break, % | 6.8 to 14 | |
| 1.1 to 13 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 62 to 69 |
| Tensile Strength: Ultimate (UTS), MPa | 980 to 1410 | |
| 860 to 1800 |
| Tensile Strength: Yield (Proof), MPa | 580 to 1310 | |
| 560 to 1460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1380 |
| Melting Onset (Solidus), °C | 1390 | |
| 1340 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 490 |
| Thermal Conductivity, W/m-K | 17 | |
| 42 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 2.9 |
| Density, g/cm3 | 7.8 | |
| 7.5 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 1.8 |
| Embodied Energy, MJ/kg | 39 | |
| 25 |
| Embodied Water, L/kg | 130 | |
| 48 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 94 to 160 | |
| 19 to 95 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 850 to 4400 | |
| 880 to 3970 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 35 to 50 | |
| 32 to 66 |
| Strength to Weight: Bending, points | 28 to 36 | |
| 27 to 44 |
| Thermal Diffusivity, mm2/s | 4.5 | |
| 11 |
| Thermal Shock Resistance, points | 33 to 47 | |
| 25 to 53 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.050 |
| Arsenic (As), % | 0 | |
| 0 to 0.020 |
| Carbon (C), % | 0 to 0.050 | |
| 3.4 to 3.8 |
| Chromium (Cr), % | 14 to 16 | |
| 0 to 0.1 |
| Copper (Cu), % | 1.3 to 1.8 | |
| 0 to 0.8 |
| Iron (Fe), % | 72.1 to 79.3 | |
| 89.6 to 94 |
| Magnesium (Mg), % | 0 | |
| 0 to 0.040 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.3 to 0.4 |
| Molybdenum (Mo), % | 0.5 to 1.0 | |
| 0 to 0.3 |
| Nickel (Ni), % | 5.0 to 7.0 | |
| 0 to 2.0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Selenium (Se), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 1.0 | |
| 2.3 to 2.7 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.020 |
| Tin (Sn), % | 0 | |
| 0 to 0.020 |
| Vanadium (V), % | 0 | |
| 0 to 0.1 |