C65400 Bronze vs. C43400 Brass
Both C65400 bronze and C43400 brass are copper alloys. They have 87% of their average alloy composition in common.
For each property being compared, the top bar is C65400 bronze and the bottom bar is C43400 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 2.6 to 47 | |
| 3.0 to 49 |
| Poisson's Ratio | 0.34 | |
| 0.33 |
| Rockwell B Hardness | 82 to 120 | |
| 54 to 94 |
| Rockwell Superficial 30T Hardness | 71 to 92 | |
| 22 to 84 |
| Shear Modulus, GPa | 43 | |
| 42 |
| Shear Strength, MPa | 350 to 530 | |
| 250 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 1060 | |
| 310 to 690 |
| Tensile Strength: Yield (Proof), MPa | 170 to 910 | |
| 110 to 560 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 170 |
| Melting Completion (Liquidus), °C | 1020 | |
| 1020 |
| Melting Onset (Solidus), °C | 960 | |
| 990 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 380 |
| Thermal Conductivity, W/m-K | 36 | |
| 140 |
| Thermal Expansion, µm/m-K | 17 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 31 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.3 | |
| 32 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 28 |
| Density, g/cm3 | 8.7 | |
| 8.6 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 2.7 |
| Embodied Energy, MJ/kg | 45 | |
| 44 |
| Embodied Water, L/kg | 310 | |
| 320 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 10 to 480 | |
| 19 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 3640 | |
| 57 to 1420 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 16 to 34 | |
| 10 to 22 |
| Strength to Weight: Bending, points | 16 to 27 | |
| 12 to 20 |
| Thermal Diffusivity, mm2/s | 10 | |
| 41 |
| Thermal Shock Resistance, points | 18 to 39 | |
| 11 to 24 |
Alloy Composition
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| Chromium (Cr), % | 0.010 to 0.12 | |
| 0 |
| Copper (Cu), % | 93.8 to 96.1 | |
| 84 to 87 |
| Iron (Fe), % | 0 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.050 |
| Silicon (Si), % | 2.7 to 3.4 | |
| 0 |
| Tin (Sn), % | 1.2 to 1.9 | |
| 0.4 to 1.0 |
| Zinc (Zn), % | 0 to 0.5 | |
| 11.4 to 15.6 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.5 |