Austempered Cast Iron vs. C67400 Bronze
Austempered cast iron belongs to the iron alloys classification, while C67400 bronze belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is austempered cast iron and the bottom bar is C67400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 110 |
| Elongation at Break, % | 1.1 to 13 | |
| 22 to 28 |
| Poisson's Ratio | 0.29 | |
| 0.31 |
| Shear Modulus, GPa | 62 to 69 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 860 to 1800 | |
| 480 to 610 |
| Tensile Strength: Yield (Proof), MPa | 560 to 1460 | |
| 250 to 370 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 190 |
| Melting Completion (Liquidus), °C | 1380 | |
| 890 |
| Melting Onset (Solidus), °C | 1340 | |
| 870 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 400 |
| Thermal Conductivity, W/m-K | 42 | |
| 100 |
| Thermal Expansion, µm/m-K | 13 | |
| 21 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.9 | |
| 23 |
| Density, g/cm3 | 7.5 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 2.8 |
| Embodied Energy, MJ/kg | 25 | |
| 48 |
| Embodied Water, L/kg | 48 | |
| 330 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 19 to 95 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 3970 | |
| 300 to 660 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 25 | |
| 20 |
| Strength to Weight: Axial, points | 32 to 66 | |
| 17 to 22 |
| Strength to Weight: Bending, points | 27 to 44 | |
| 17 to 20 |
| Thermal Diffusivity, mm2/s | 11 | |
| 32 |
| Thermal Shock Resistance, points | 25 to 53 | |
| 16 to 20 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.050 | |
| 0.5 to 2.0 |
| Arsenic (As), % | 0 to 0.020 | |
| 0 |
| Carbon (C), % | 3.4 to 3.8 | |
| 0 |
| Chromium (Cr), % | 0 to 0.1 | |
| 0 |
| Copper (Cu), % | 0 to 0.8 | |
| 57 to 60 |
| Iron (Fe), % | 89.6 to 94 | |
| 0 to 0.35 |
| Lead (Pb), % | 0 | |
| 0 to 0.5 |
| Magnesium (Mg), % | 0 to 0.040 | |
| 0 |
| Manganese (Mn), % | 0.3 to 0.4 | |
| 2.0 to 3.5 |
| Molybdenum (Mo), % | 0 to 0.3 | |
| 0 |
| Nickel (Ni), % | 0 to 2.0 | |
| 0 to 0.25 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Selenium (Se), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 2.3 to 2.7 | |
| 0.5 to 1.5 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 |
| Tin (Sn), % | 0 to 0.020 | |
| 0 to 0.3 |
| Vanadium (V), % | 0 to 0.1 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 31.1 to 40 |
| Residuals, % | 0 | |
| 0 to 0.5 |