C67400 Bronze vs. ZA-12
C67400 bronze belongs to the copper alloys classification, while ZA-12 belongs to the zinc alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 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 C67400 bronze and the bottom bar is ZA-12.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 83 |
| Elongation at Break, % | 22 to 28 | |
| 1.6 to 5.3 |
| Poisson's Ratio | 0.31 | |
| 0.26 |
| Rockwell B Hardness | 78 to 85 | |
| 56 to 63 |
| Shear Modulus, GPa | 41 | |
| 33 |
| Shear Strength, MPa | 310 to 350 | |
| 240 to 300 |
| Tensile Strength: Ultimate (UTS), MPa | 480 to 610 | |
| 260 to 400 |
| Tensile Strength: Yield (Proof), MPa | 250 to 370 | |
| 210 to 320 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 120 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 100 |
| Melting Completion (Liquidus), °C | 890 | |
| 430 |
| Melting Onset (Solidus), °C | 870 | |
| 380 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 450 |
| Thermal Conductivity, W/m-K | 100 | |
| 120 |
| Thermal Expansion, µm/m-K | 21 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 23 | |
| 28 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 26 | |
| 42 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 11 |
| Density, g/cm3 | 7.9 | |
| 6.0 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 3.4 |
| Embodied Energy, MJ/kg | 48 | |
| 64 |
| Embodied Water, L/kg | 330 | |
| 440 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 4.0 to 20 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 to 660 | |
| 260 to 620 |
| Stiffness to Weight: Axial, points | 7.5 | |
| 7.6 |
| Stiffness to Weight: Bending, points | 20 | |
| 24 |
| Strength to Weight: Axial, points | 17 to 22 | |
| 12 to 19 |
| Strength to Weight: Bending, points | 17 to 20 | |
| 15 to 20 |
| Thermal Diffusivity, mm2/s | 32 | |
| 43 |
| Thermal Shock Resistance, points | 16 to 20 | |
| 9.4 to 14 |
Alloy Composition
| Aluminum (Al), % | 0.5 to 2.0 | |
| 10.5 to 11.5 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0060 |
| Copper (Cu), % | 57 to 60 | |
| 0.5 to 1.2 |
| Iron (Fe), % | 0 to 0.35 | |
| 0 to 0.075 |
| Lead (Pb), % | 0 to 0.5 | |
| 0 to 0.0060 |
| Magnesium (Mg), % | 0 | |
| 0.015 to 0.030 |
| Manganese (Mn), % | 2.0 to 3.5 | |
| 0 |
| Nickel (Ni), % | 0 to 0.25 | |
| 0 to 0.020 |
| Silicon (Si), % | 0.5 to 1.5 | |
| 0 to 0.060 |
| Tin (Sn), % | 0 to 0.3 | |
| 0 to 0.0030 |
| Zinc (Zn), % | 31.1 to 40 | |
| 87.1 to 89 |
| Residuals, % | 0 to 0.5 | |
| 0 |