Zamak 2 vs. C90500 Gun Metal
Zamak 2 belongs to the zinc alloys classification, while C90500 gun metal belongs to the copper alloys. There are 31 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 Zamak 2 and the bottom bar is C90500 gun metal.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 640 | |
| 280 |
| Elastic (Young's, Tensile) Modulus, GPa | 87 | |
| 110 |
| Elongation at Break, % | 6.0 | |
| 20 |
| Fatigue Strength, MPa | 59 | |
| 90 |
| Poisson's Ratio | 0.26 | |
| 0.34 |
| Shear Modulus, GPa | 33 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 360 | |
| 320 |
| Tensile Strength: Yield (Proof), MPa | 270 | |
| 160 |
Thermal Properties
| Latent Heat of Fusion, J/g | 130 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 95 | |
| 170 |
| Melting Completion (Liquidus), °C | 390 | |
| 1000 |
| Melting Onset (Solidus), °C | 380 | |
| 850 |
| Solidification (Pattern Maker's) Shrinkage, % | 1.3 | |
| 1.6 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 370 |
| Thermal Conductivity, W/m-K | 110 | |
| 75 |
| Thermal Expansion, µm/m-K | 28 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 25 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 35 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 35 |
| Density, g/cm3 | 6.5 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 3.6 |
| Embodied Energy, MJ/kg | 57 | |
| 59 |
| Embodied Water, L/kg | 380 | |
| 390 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 20 | |
| 54 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 420 | |
| 110 |
| Stiffness to Weight: Axial, points | 7.5 | |
| 6.9 |
| Stiffness to Weight: Bending, points | 23 | |
| 18 |
| Strength to Weight: Axial, points | 15 | |
| 10 |
| Strength to Weight: Bending, points | 17 | |
| 12 |
| Thermal Diffusivity, mm2/s | 41 | |
| 23 |
| Thermal Shock Resistance, points | 11 | |
| 12 |
Alloy Composition
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| Aluminum (Al), % | 3.5 to 4.3 | |
| 0 to 0.0050 |
| Antimony (Sb), % | 0 | |
| 0 to 0.2 |
| Cadmium (Cd), % | 0 to 0.0050 | |
| 0 |
| Copper (Cu), % | 2.5 to 3.3 | |
| 86 to 89 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.2 |
| Lead (Pb), % | 0 to 0.0050 | |
| 0 to 0.3 |
| Magnesium (Mg), % | 0.020 to 0.060 | |
| 0 |
| Nickel (Ni), % | 0 to 0.020 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 | |
| 0 to 1.5 |
| Silicon (Si), % | 0 to 0.030 | |
| 0 to 0.0050 |
| Sulfur (S), % | 0 | |
| 0 to 0.050 |
| Tin (Sn), % | 0 to 0.0030 | |
| 9.0 to 11 |
| Zinc (Zn), % | 92.2 to 94 | |
| 1.0 to 3.0 |
| Residuals, % | 0 | |
| 0 to 0.3 |