ZA-12 vs. C99750 Brass
ZA-12 belongs to the zinc alloys classification, while C99750 brass belongs to the copper alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is ZA-12 and the bottom bar is C99750 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 89 to 100 | |
| 110 to 120 |
| Elastic (Young's, Tensile) Modulus, GPa | 83 | |
| 130 |
| Elongation at Break, % | 1.6 to 5.3 | |
| 20 to 30 |
| Poisson's Ratio | 0.26 | |
| 0.32 |
| Rockwell B Hardness | 56 to 63 | |
| 77 to 82 |
| Shear Modulus, GPa | 33 | |
| 48 |
| Tensile Strength: Ultimate (UTS), MPa | 260 to 400 | |
| 450 to 520 |
| Tensile Strength: Yield (Proof), MPa | 210 to 320 | |
| 220 to 280 |
Thermal Properties
| Latent Heat of Fusion, J/g | 120 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 100 | |
| 160 |
| Melting Completion (Liquidus), °C | 430 | |
| 840 |
| Melting Onset (Solidus), °C | 380 | |
| 820 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 410 |
| Thermal Expansion, µm/m-K | 24 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 28 | |
| 2.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 42 | |
| 2.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 23 |
| Density, g/cm3 | 6.0 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 3.1 |
| Embodied Energy, MJ/kg | 64 | |
| 51 |
| Embodied Water, L/kg | 440 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 4.0 to 20 | |
| 87 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 260 to 620 | |
| 190 to 300 |
| Stiffness to Weight: Axial, points | 7.6 | |
| 8.6 |
| Stiffness to Weight: Bending, points | 24 | |
| 21 |
| Strength to Weight: Axial, points | 12 to 19 | |
| 15 to 18 |
| Strength to Weight: Bending, points | 15 to 20 | |
| 16 to 18 |
| Thermal Shock Resistance, points | 9.4 to 14 | |
| 13 to 15 |
Alloy Composition
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| Aluminum (Al), % | 10.5 to 11.5 | |
| 0.25 to 3.0 |
| Cadmium (Cd), % | 0 to 0.0060 | |
| 0 |
| Copper (Cu), % | 0.5 to 1.2 | |
| 55 to 61 |
| Iron (Fe), % | 0 to 0.075 | |
| 0 to 1.0 |
| Lead (Pb), % | 0 to 0.0060 | |
| 0.5 to 2.5 |
| Magnesium (Mg), % | 0.015 to 0.030 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 17 to 23 |
| Nickel (Ni), % | 0 to 0.020 | |
| 0 to 5.0 |
| Silicon (Si), % | 0 to 0.060 | |
| 0 |
| Tin (Sn), % | 0 to 0.0030 | |
| 0 |
| Zinc (Zn), % | 87.1 to 89 | |
| 17 to 23 |
| Residuals, % | 0 | |
| 0 to 0.3 |