C67000 Bronze vs. Zamak 7
C67000 bronze belongs to the copper alloys classification, while Zamak 7 belongs to the zinc alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is C67000 bronze and the bottom bar is Zamak 7.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 86 |
| Elongation at Break, % | 5.6 to 11 | |
| 13 |
| Poisson's Ratio | 0.31 | |
| 0.25 |
| Shear Modulus, GPa | 42 | |
| 33 |
| Shear Strength, MPa | 390 to 510 | |
| 210 |
| Tensile Strength: Ultimate (UTS), MPa | 660 to 880 | |
| 280 |
| Tensile Strength: Yield (Proof), MPa | 350 to 540 | |
| 250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 120 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 95 |
| Melting Completion (Liquidus), °C | 900 | |
| 390 |
| Melting Onset (Solidus), °C | 850 | |
| 380 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 410 |
| Thermal Conductivity, W/m-K | 99 | |
| 110 |
| Thermal Expansion, µm/m-K | 20 | |
| 27 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 22 | |
| 27 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 25 | |
| 38 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 11 |
| Density, g/cm3 | 7.9 | |
| 6.4 |
| Embodied Carbon, kg CO2/kg material | 2.9 | |
| 3.0 |
| Embodied Energy, MJ/kg | 49 | |
| 57 |
| Embodied Water, L/kg | 350 | |
| 380 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 43 to 62 | |
| 36 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 560 to 1290 | |
| 370 |
| Stiffness to Weight: Axial, points | 7.8 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 20 | |
| 23 |
| Strength to Weight: Axial, points | 23 to 31 | |
| 12 |
| Strength to Weight: Bending, points | 21 to 26 | |
| 15 |
| Thermal Diffusivity, mm2/s | 30 | |
| 43 |
| Thermal Shock Resistance, points | 21 to 29 | |
| 8.6 |
Alloy Composition
| Aluminum (Al), % | 3.0 to 6.0 | |
| 3.5 to 4.3 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0020 |
| Copper (Cu), % | 63 to 68 | |
| 0 to 0.25 |
| Iron (Fe), % | 2.0 to 4.0 | |
| 0 to 0.075 |
| Lead (Pb), % | 0 to 0.2 | |
| 0 to 0.0030 |
| Magnesium (Mg), % | 0 | |
| 0.0050 to 0.020 |
| Manganese (Mn), % | 2.5 to 5.0 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 0.0050 to 0.020 |
| Tin (Sn), % | 0 to 0.5 | |
| 0 to 0.0010 |
| Zinc (Zn), % | 21.8 to 32.5 | |
| 95.3 to 96.5 |
| Residuals, % | 0 to 0.5 | |
| 0 |