Zamak 7 vs. C24000 Brass
Zamak 7 belongs to the zinc alloys classification, while C24000 brass belongs to the copper alloys. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is Zamak 7 and the bottom bar is C24000 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 86 | |
| 110 |
| Poisson's Ratio | 0.25 | |
| 0.32 |
| Shear Modulus, GPa | 33 | |
| 42 |
| Tensile Strength: Ultimate (UTS), MPa | 280 | |
| 310 to 640 |
Thermal Properties
| Latent Heat of Fusion, J/g | 120 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 95 | |
| 160 |
| Melting Completion (Liquidus), °C | 390 | |
| 1000 |
| Melting Onset (Solidus), °C | 380 | |
| 970 |
| Solidification (Pattern Maker's) Shrinkage, % | 1.2 | |
| 5.5 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 390 |
| Thermal Conductivity, W/m-K | 110 | |
| 140 |
| Thermal Expansion, µm/m-K | 27 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 27 | |
| 32 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 38 | |
| 34 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 27 |
| Density, g/cm3 | 6.4 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 2.6 |
| Embodied Energy, MJ/kg | 57 | |
| 43 |
| Embodied Water, L/kg | 380 | |
| 320 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.5 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 23 | |
| 19 |
| Strength to Weight: Axial, points | 12 | |
| 10 to 21 |
| Strength to Weight: Bending, points | 15 | |
| 12 to 20 |
| Thermal Diffusivity, mm2/s | 43 | |
| 43 |
| Thermal Shock Resistance, points | 8.6 | |
| 10 to 22 |
Alloy Composition
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| Aluminum (Al), % | 3.5 to 4.3 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.0020 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 78.5 to 81.5 |
| Iron (Fe), % | 0 to 0.075 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 to 0.0030 | |
| 0 to 0.050 |
| Magnesium (Mg), % | 0.0050 to 0.020 | |
| 0 |
| Nickel (Ni), % | 0.0050 to 0.020 | |
| 0 |
| Tin (Sn), % | 0 to 0.0010 | |
| 0 |
| Zinc (Zn), % | 95.3 to 96.5 | |
| 18.2 to 21.5 |
| Residuals, % | 0 | |
| 0 to 0.2 |