Austempered Cast Iron vs. C87400 Brass
Austempered cast iron belongs to the iron alloys classification, while C87400 brass belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is austempered cast iron and the bottom bar is C87400 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 110 |
| Elongation at Break, % | 1.1 to 13 | |
| 21 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 62 to 69 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 860 to 1800 | |
| 390 |
| Tensile Strength: Yield (Proof), MPa | 560 to 1460 | |
| 160 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Melting Completion (Liquidus), °C | 1380 | |
| 920 |
| Melting Onset (Solidus), °C | 1340 | |
| 820 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 400 |
| Thermal Conductivity, W/m-K | 42 | |
| 28 |
| Thermal Expansion, µm/m-K | 13 | |
| 18 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.9 | |
| 27 |
| Density, g/cm3 | 7.5 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 2.7 |
| Embodied Energy, MJ/kg | 25 | |
| 44 |
| Embodied Water, L/kg | 48 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 19 to 95 | |
| 65 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 3970 | |
| 120 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.4 |
| Stiffness to Weight: Bending, points | 25 | |
| 19 |
| Strength to Weight: Axial, points | 32 to 66 | |
| 13 |
| Strength to Weight: Bending, points | 27 to 44 | |
| 14 |
| Thermal Diffusivity, mm2/s | 11 | |
| 8.3 |
| Thermal Shock Resistance, points | 25 to 53 | |
| 14 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.050 | |
| 0 to 0.8 |
| 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 | |
| 79 to 85.5 |
| Iron (Fe), % | 89.6 to 94 | |
| 0 |
| Lead (Pb), % | 0 | |
| 0 to 1.0 |
| Magnesium (Mg), % | 0 to 0.040 | |
| 0 |
| Manganese (Mn), % | 0.3 to 0.4 | |
| 0 |
| Molybdenum (Mo), % | 0 to 0.3 | |
| 0 |
| Nickel (Ni), % | 0 to 2.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Selenium (Se), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 2.3 to 2.7 | |
| 2.5 to 4.0 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 |
| Tin (Sn), % | 0 to 0.020 | |
| 0 |
| Vanadium (V), % | 0 to 0.1 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 12 to 16 |
| Residuals, % | 0 | |
| 0 to 0.8 |