Austempered Cast Iron vs. Nickel 625
Austempered cast iron belongs to the iron alloys classification, while nickel 625 belongs to the nickel alloys. There are 25 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 nickel 625.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 200 |
| Elongation at Break, % | 1.1 to 13 | |
| 33 to 34 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 62 to 69 | |
| 79 |
| Tensile Strength: Ultimate (UTS), MPa | 860 to 1800 | |
| 790 to 910 |
| Tensile Strength: Yield (Proof), MPa | 560 to 1460 | |
| 320 to 450 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 330 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1350 |
| Melting Onset (Solidus), °C | 1340 | |
| 1290 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 440 |
| Thermal Conductivity, W/m-K | 42 | |
| 11 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.9 | |
| 80 |
| Density, g/cm3 | 7.5 | |
| 8.6 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 14 |
| Embodied Energy, MJ/kg | 25 | |
| 190 |
| Embodied Water, L/kg | 48 | |
| 290 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 19 to 95 | |
| 220 to 250 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 3970 | |
| 260 to 490 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 32 to 66 | |
| 26 to 29 |
| Strength to Weight: Bending, points | 27 to 44 | |
| 22 to 24 |
| Thermal Diffusivity, mm2/s | 11 | |
| 2.9 |
| Thermal Shock Resistance, points | 25 to 53 | |
| 22 to 25 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.050 | |
| 0 to 0.4 |
| Arsenic (As), % | 0 to 0.020 | |
| 0 |
| Carbon (C), % | 3.4 to 3.8 | |
| 0 to 0.1 |
| Chromium (Cr), % | 0 to 0.1 | |
| 20 to 23 |
| Cobalt (Co), % | 0 | |
| 0 to 1.0 |
| Copper (Cu), % | 0 to 0.8 | |
| 0 |
| Iron (Fe), % | 89.6 to 94 | |
| 0 to 5.0 |
| Magnesium (Mg), % | 0 to 0.040 | |
| 0 |
| Manganese (Mn), % | 0.3 to 0.4 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 0 to 0.3 | |
| 8.0 to 10 |
| Nickel (Ni), % | 0 to 2.0 | |
| 58 to 68.9 |
| Niobium (Nb), % | 0 | |
| 3.2 to 4.2 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.015 |
| Selenium (Se), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 2.3 to 2.7 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.015 |
| Tin (Sn), % | 0 to 0.020 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.4 |
| Vanadium (V), % | 0 to 0.1 | |
| 0 |