C40500 Penny Bronze vs. C43000 Brass
Both C40500 penny bronze and C43000 brass are copper alloys. They have a moderately high 91% of their average alloy composition in common.
For each property being compared, the top bar is C40500 penny bronze and the bottom bar is C43000 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 3.0 to 49 | |
| 3.0 to 55 |
| Poisson's Ratio | 0.34 | |
| 0.33 |
| Rockwell B Hardness | 46 to 82 | |
| 30 to 100 |
| Rockwell Superficial 30T Hardness | 10 to 72 | |
| 57 to 86 |
| Shear Modulus, GPa | 43 | |
| 42 |
| Shear Strength, MPa | 210 to 310 | |
| 230 to 410 |
| Tensile Strength: Ultimate (UTS), MPa | 270 to 540 | |
| 320 to 710 |
| Tensile Strength: Yield (Proof), MPa | 79 to 520 | |
| 130 to 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 190 | |
| 170 |
| Melting Completion (Liquidus), °C | 1060 | |
| 1030 |
| Melting Onset (Solidus), °C | 1020 | |
| 1000 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 380 |
| Thermal Conductivity, W/m-K | 160 | |
| 120 |
| Thermal Expansion, µm/m-K | 18 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 41 | |
| 27 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 42 | |
| 28 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 30 | |
| 29 |
| Density, g/cm3 | 8.8 | |
| 8.6 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.8 |
| Embodied Energy, MJ/kg | 43 | |
| 46 |
| Embodied Water, L/kg | 320 | |
| 330 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 16 to 110 | |
| 20 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 28 to 1200 | |
| 82 to 1350 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.1 |
| Stiffness to Weight: Bending, points | 18 | |
| 19 |
| Strength to Weight: Axial, points | 8.5 to 17 | |
| 10 to 23 |
| Strength to Weight: Bending, points | 10 to 17 | |
| 12 to 20 |
| Thermal Diffusivity, mm2/s | 48 | |
| 36 |
| Thermal Shock Resistance, points | 9.5 to 19 | |
| 11 to 25 |
Alloy Composition
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| Copper (Cu), % | 94 to 96 | |
| 84 to 87 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.1 |
| Tin (Sn), % | 0.7 to 1.3 | |
| 1.7 to 2.7 |
| Zinc (Zn), % | 2.1 to 5.3 | |
| 9.7 to 14.3 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |