C68700 Brass vs. Automotive Malleable Cast Iron
C68700 brass belongs to the copper alloys classification, while automotive malleable cast iron belongs to the iron 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 C68700 brass and the bottom bar is automotive malleable cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 180 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 41 | |
| 70 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 350 to 720 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 220 to 590 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 260 |
| Melting Completion (Liquidus), °C | 970 | |
| 1410 |
| Melting Onset (Solidus), °C | 930 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 480 |
| Thermal Conductivity, W/m-K | 100 | |
| 41 |
| Thermal Expansion, µm/m-K | 19 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 23 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 25 | |
| 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 1.9 |
| Density, g/cm3 | 8.3 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 1.5 |
| Embodied Energy, MJ/kg | 46 | |
| 20 |
| Embodied Water, L/kg | 340 | |
| 45 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 90 | |
| 130 to 950 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 25 |
| Strength to Weight: Axial, points | 13 | |
| 13 to 26 |
| Strength to Weight: Bending, points | 14 | |
| 14 to 24 |
| Thermal Diffusivity, mm2/s | 30 | |
| 11 |
| Thermal Shock Resistance, points | 13 | |
| 9.9 to 21 |
Alloy Composition
| Aluminum (Al), % | 1.8 to 2.5 | |
| 0 |
| Arsenic (As), % | 0.020 to 0.1 | |
| 0 |
| Carbon (C), % | 0 | |
| 2.2 to 2.9 |
| Copper (Cu), % | 76 to 79 | |
| 0 |
| Iron (Fe), % | 0 to 0.060 | |
| 93.6 to 96.7 |
| Lead (Pb), % | 0 to 0.070 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.15 to 1.3 |
| Phosphorus (P), % | 0 | |
| 0.020 to 0.15 |
| Silicon (Si), % | 0 | |
| 0.9 to 1.9 |
| Sulfur (S), % | 0 | |
| 0.020 to 0.2 |
| Zinc (Zn), % | 17.8 to 22.2 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |