C90200 Bronze vs. C85400 Brass
Both C90200 bronze and C85400 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 70% of their average alloy composition in common.
For each property being compared, the top bar is C90200 bronze and the bottom bar is C85400 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 70 | |
| 55 |
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 100 |
| Elongation at Break, % | 30 | |
| 23 |
| Poisson's Ratio | 0.34 | |
| 0.32 |
| Shear Modulus, GPa | 41 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 260 | |
| 220 |
| Tensile Strength: Yield (Proof), MPa | 110 | |
| 85 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 180 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 130 |
| Melting Completion (Liquidus), °C | 1050 | |
| 940 |
| Melting Onset (Solidus), °C | 880 | |
| 940 |
| Specific Heat Capacity, J/kg-K | 370 | |
| 380 |
| Thermal Conductivity, W/m-K | 62 | |
| 89 |
| Thermal Expansion, µm/m-K | 18 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 13 | |
| 20 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 13 | |
| 22 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 34 | |
| 25 |
| Density, g/cm3 | 8.8 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 2.8 |
| Embodied Energy, MJ/kg | 53 | |
| 46 |
| Embodied Water, L/kg | 370 | |
| 330 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 63 | |
| 40 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 55 | |
| 35 |
| Stiffness to Weight: Axial, points | 7.0 | |
| 7.0 |
| Stiffness to Weight: Bending, points | 18 | |
| 19 |
| Strength to Weight: Axial, points | 8.3 | |
| 7.5 |
| Strength to Weight: Bending, points | 10 | |
| 9.9 |
| Thermal Diffusivity, mm2/s | 19 | |
| 28 |
| Thermal Shock Resistance, points | 9.5 | |
| 7.6 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.0050 | |
| 0 to 0.35 |
| Antimony (Sb), % | 0 to 0.2 | |
| 0 |
| Copper (Cu), % | 91 to 94 | |
| 65 to 70 |
| Iron (Fe), % | 0 to 0.2 | |
| 0 to 0.7 |
| Lead (Pb), % | 0 to 0.3 | |
| 1.5 to 3.8 |
| Nickel (Ni), % | 0 to 0.5 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 to 0.050 | |
| 0 |
| Silicon (Si), % | 0 to 0.0050 | |
| 0 to 0.050 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 |
| Tin (Sn), % | 6.0 to 8.0 | |
| 0.5 to 1.5 |
| Zinc (Zn), % | 0 to 0.5 | |
| 24 to 32 |
| Residuals, % | 0 to 0.6 | |
| 0 to 1.1 |