Z21721 Zinc vs. C85200 Brass
Z21721 zinc belongs to the zinc alloys classification, while C85200 brass belongs to the copper alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much.
For each property being compared, the top bar is Z21721 zinc and the bottom bar is C85200 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 87 | |
| 110 |
| Elongation at Break, % | 40 | |
| 28 |
| Poisson's Ratio | 0.25 | |
| 0.32 |
| Shear Modulus, GPa | 35 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 150 | |
| 270 |
| Tensile Strength: Yield (Proof), MPa | 120 | |
| 95 |
Thermal Properties
| Latent Heat of Fusion, J/g | 110 | |
| 180 |
| Maximum Temperature: Mechanical, °C | 90 | |
| 140 |
| Melting Completion (Liquidus), °C | 410 | |
| 940 |
| Melting Onset (Solidus), °C | 390 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 380 |
| Thermal Conductivity, W/m-K | 110 | |
| 84 |
| Thermal Expansion, µm/m-K | 26 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 27 | |
| 18 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 37 | |
| 19 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 26 |
| Density, g/cm3 | 6.6 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 2.8 |
| Embodied Energy, MJ/kg | 53 | |
| 46 |
| Embodied Water, L/kg | 340 | |
| 330 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 57 | |
| 59 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 88 | |
| 42 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 7.0 |
| Stiffness to Weight: Bending, points | 22 | |
| 19 |
| Strength to Weight: Axial, points | 6.4 | |
| 8.9 |
| Strength to Weight: Bending, points | 9.6 | |
| 11 |
| Thermal Diffusivity, mm2/s | 44 | |
| 27 |
| Thermal Shock Resistance, points | 4.8 | |
| 9.3 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.0020 | |
| 0 to 0.0050 |
| Antimony (Sb), % | 0 | |
| 0 to 0.2 |
| Cadmium (Cd), % | 0 to 0.070 | |
| 0 |
| Copper (Cu), % | 0 to 0.0050 | |
| 70 to 74 |
| Iron (Fe), % | 0 to 0.010 | |
| 0 to 0.6 |
| Lead (Pb), % | 0 to 1.0 | |
| 1.5 to 3.8 |
| Nickel (Ni), % | 0 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 | |
| 0 to 0.050 |
| Sulfur (S), % | 0 | |
| 0 to 0.050 |
| Tin (Sn), % | 0 | |
| 0.7 to 2.0 |
| Titanium (Ti), % | 0 to 0.020 | |
| 0 |
| Zinc (Zn), % | 98.9 to 100 | |
| 20 to 27 |
| Residuals, % | 0 | |
| 0 to 0.9 |