C66900 Brass vs. Zamak 7
C66900 brass belongs to the copper alloys classification, while Zamak 7 belongs to the zinc alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is C66900 brass and the bottom bar is Zamak 7.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 86 |
| Elongation at Break, % | 1.1 to 26 | |
| 13 |
| Poisson's Ratio | 0.32 | |
| 0.25 |
| Shear Modulus, GPa | 45 | |
| 33 |
| Shear Strength, MPa | 290 to 440 | |
| 210 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 770 | |
| 280 |
| Tensile Strength: Yield (Proof), MPa | 330 to 760 | |
| 250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 120 |
| Maximum Temperature: Mechanical, °C | 150 | |
| 95 |
| Melting Completion (Liquidus), °C | 860 | |
| 390 |
| Melting Onset (Solidus), °C | 850 | |
| 380 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 410 |
| Thermal Expansion, µm/m-K | 20 | |
| 27 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.4 | |
| 27 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.8 | |
| 38 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 11 |
| Density, g/cm3 | 8.2 | |
| 6.4 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 3.0 |
| Embodied Energy, MJ/kg | 46 | |
| 57 |
| Embodied Water, L/kg | 310 | |
| 380 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 4.6 to 200 | |
| 36 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 to 2450 | |
| 370 |
| Stiffness to Weight: Axial, points | 8.1 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 20 | |
| 23 |
| Strength to Weight: Axial, points | 15 to 26 | |
| 12 |
| Strength to Weight: Bending, points | 16 to 23 | |
| 15 |
| Thermal Shock Resistance, points | 14 to 23 | |
| 8.6 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 3.5 to 4.3 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0020 |
| Copper (Cu), % | 62.5 to 64.5 | |
| 0 to 0.25 |
| Iron (Fe), % | 0 to 0.25 | |
| 0 to 0.075 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.0030 |
| Magnesium (Mg), % | 0 | |
| 0.0050 to 0.020 |
| Manganese (Mn), % | 11.5 to 12.5 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 0.0050 to 0.020 |
| Tin (Sn), % | 0 | |
| 0 to 0.0010 |
| Zinc (Zn), % | 22.5 to 26 | |
| 95.3 to 96.5 |
| Residuals, % | 0 to 0.2 | |
| 0 |