C34500 Brass vs. C61400 Bronze
Both C34500 brass and C61400 bronze are copper alloys. They have 64% of their average alloy composition in common.
For each property being compared, the top bar is C34500 brass and the bottom bar is C61400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Elongation at Break, % | 12 to 28 | |
| 34 to 40 |
| Poisson's Ratio | 0.31 | |
| 0.34 |
| Shear Modulus, GPa | 40 | |
| 43 |
| Shear Strength, MPa | 220 to 260 | |
| 370 to 380 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 430 | |
| 540 to 570 |
| Tensile Strength: Yield (Proof), MPa | 120 to 180 | |
| 220 to 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 220 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 220 |
| Melting Completion (Liquidus), °C | 910 | |
| 1050 |
| Melting Onset (Solidus), °C | 890 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 420 |
| Thermal Conductivity, W/m-K | 120 | |
| 67 |
| Thermal Expansion, µm/m-K | 21 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 14 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 15 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 28 |
| Density, g/cm3 | 8.2 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 3.0 |
| Embodied Energy, MJ/kg | 45 | |
| 48 |
| Embodied Water, L/kg | 320 | |
| 360 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 42 to 75 | |
| 160 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 69 to 160 | |
| 210 to 310 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 12 to 15 | |
| 18 to 19 |
| Strength to Weight: Bending, points | 13 to 16 | |
| 17 to 18 |
| Thermal Diffusivity, mm2/s | 37 | |
| 19 |
| Thermal Shock Resistance, points | 11 to 14 | |
| 18 to 20 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 6.0 to 8.0 |
| Copper (Cu), % | 62 to 65 | |
| 86 to 92.5 |
| Iron (Fe), % | 0 to 0.15 | |
| 1.5 to 3.5 |
| Lead (Pb), % | 1.5 to 2.5 | |
| 0 to 0.010 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.015 |
| Zinc (Zn), % | 32 to 36.5 | |
| 0 to 1.0 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |