C21000 Brass vs. C63000 Bronze
Both C21000 brass and C63000 bronze are copper alloys. They have 81% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is C21000 brass and the bottom bar is C63000 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 120 |
| Elongation at Break, % | 2.9 to 50 | |
| 7.9 to 15 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 43 | |
| 44 |
| Shear Strength, MPa | 180 to 280 | |
| 400 to 470 |
| Tensile Strength: Ultimate (UTS), MPa | 240 to 450 | |
| 660 to 790 |
| Tensile Strength: Yield (Proof), MPa | 69 to 440 | |
| 330 to 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 230 |
| Maximum Temperature: Mechanical, °C | 190 | |
| 230 |
| Melting Completion (Liquidus), °C | 1070 | |
| 1050 |
| Melting Onset (Solidus), °C | 1050 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 440 |
| Thermal Conductivity, W/m-K | 230 | |
| 39 |
| Thermal Expansion, µm/m-K | 18 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 56 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 57 | |
| 7.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 30 | |
| 29 |
| Density, g/cm3 | 8.8 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 3.5 |
| Embodied Energy, MJ/kg | 42 | |
| 57 |
| Embodied Water, L/kg | 310 | |
| 390 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 100 | |
| 47 to 82 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 21 to 830 | |
| 470 to 640 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.9 |
| Stiffness to Weight: Bending, points | 18 | |
| 20 |
| Strength to Weight: Axial, points | 7.4 to 14 | |
| 22 to 26 |
| Strength to Weight: Bending, points | 9.6 to 15 | |
| 20 to 23 |
| Thermal Diffusivity, mm2/s | 69 | |
| 11 |
| Thermal Shock Resistance, points | 8.1 to 15 | |
| 23 to 27 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 9.0 to 11 |
| Copper (Cu), % | 94 to 96 | |
| 76.8 to 85 |
| Iron (Fe), % | 0 to 0.050 | |
| 2.0 to 4.0 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0 to 1.5 |
| Nickel (Ni), % | 0 | |
| 4.0 to 5.5 |
| Silicon (Si), % | 0 | |
| 0 to 0.25 |
| Tin (Sn), % | 0 | |
| 0 to 0.2 |
| Zinc (Zn), % | 3.7 to 6.0 | |
| 0 to 0.3 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.5 |