Austempered Cast Iron vs. C99750 Brass
Austempered cast iron belongs to the iron alloys classification, while C99750 brass belongs to the copper alloys. There are 24 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 C99750 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 270 to 490 | |
| 110 to 120 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 130 |
| Elongation at Break, % | 1.1 to 13 | |
| 20 to 30 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 62 to 69 | |
| 48 |
| Tensile Strength: Ultimate (UTS), MPa | 860 to 1800 | |
| 450 to 520 |
| Tensile Strength: Yield (Proof), MPa | 560 to 1460 | |
| 220 to 280 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 200 |
| Melting Completion (Liquidus), °C | 1380 | |
| 840 |
| Melting Onset (Solidus), °C | 1340 | |
| 820 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 410 |
| Thermal Expansion, µm/m-K | 13 | |
| 20 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.9 | |
| 23 |
| Density, g/cm3 | 7.5 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 3.1 |
| Embodied Energy, MJ/kg | 25 | |
| 51 |
| Embodied Water, L/kg | 48 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 19 to 95 | |
| 87 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 3970 | |
| 190 to 300 |
| Stiffness to Weight: Axial, points | 13 | |
| 8.6 |
| Stiffness to Weight: Bending, points | 25 | |
| 21 |
| Strength to Weight: Axial, points | 32 to 66 | |
| 15 to 18 |
| Strength to Weight: Bending, points | 27 to 44 | |
| 16 to 18 |
| Thermal Shock Resistance, points | 25 to 53 | |
| 13 to 15 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.050 | |
| 0.25 to 3.0 |
| 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 | |
| 55 to 61 |
| Iron (Fe), % | 89.6 to 94 | |
| 0 to 1.0 |
| Lead (Pb), % | 0 | |
| 0.5 to 2.5 |
| Magnesium (Mg), % | 0 to 0.040 | |
| 0 |
| Manganese (Mn), % | 0.3 to 0.4 | |
| 17 to 23 |
| Molybdenum (Mo), % | 0 to 0.3 | |
| 0 |
| Nickel (Ni), % | 0 to 2.0 | |
| 0 to 5.0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Selenium (Se), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 2.3 to 2.7 | |
| 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 | |
| 17 to 23 |
| Residuals, % | 0 | |
| 0 to 0.3 |