C95800 Bronze vs. C90500 Gun Metal
Both C95800 bronze and C90500 gun metal are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 82% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is C95800 bronze and the bottom bar is C90500 gun metal.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 110 |
| Elongation at Break, % | 22 | |
| 20 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 44 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 660 | |
| 320 |
| Tensile Strength: Yield (Proof), MPa | 270 | |
| 160 |
Thermal Properties
| Latent Heat of Fusion, J/g | 230 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 230 | |
| 170 |
| Melting Completion (Liquidus), °C | 1060 | |
| 1000 |
| Melting Onset (Solidus), °C | 1040 | |
| 850 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 370 |
| Thermal Conductivity, W/m-K | 36 | |
| 75 |
| Thermal Expansion, µm/m-K | 17 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.6 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 29 | |
| 35 |
| Density, g/cm3 | 8.3 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 3.6 |
| Embodied Energy, MJ/kg | 55 | |
| 59 |
| Embodied Water, L/kg | 370 | |
| 390 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 54 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 310 | |
| 110 |
| Stiffness to Weight: Axial, points | 7.9 | |
| 6.9 |
| Stiffness to Weight: Bending, points | 20 | |
| 18 |
| Strength to Weight: Axial, points | 22 | |
| 10 |
| Strength to Weight: Bending, points | 20 | |
| 12 |
| Thermal Diffusivity, mm2/s | 9.9 | |
| 23 |
| Thermal Shock Resistance, points | 23 | |
| 12 |
Alloy Composition
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| Aluminum (Al), % | 8.5 to 9.5 | |
| 0 to 0.0050 |
| Antimony (Sb), % | 0 | |
| 0 to 0.2 |
| Copper (Cu), % | 79 to 83.2 | |
| 86 to 89 |
| Iron (Fe), % | 3.5 to 4.5 | |
| 0 to 0.2 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 to 0.3 |
| Manganese (Mn), % | 0.8 to 1.5 | |
| 0 |
| Nickel (Ni), % | 4.0 to 5.0 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 | |
| 0 to 1.5 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.0050 |
| Sulfur (S), % | 0 | |
| 0 to 0.050 |
| Tin (Sn), % | 0 | |
| 9.0 to 11 |
| Zinc (Zn), % | 0 | |
| 1.0 to 3.0 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.3 |