C51900 Bronze vs. C65400 Bronze
Both C51900 bronze and C65400 bronze are copper alloys. They have a very high 95% of their average alloy composition in common.
For each property being compared, the top bar is C51900 bronze and the bottom bar is C65400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 14 to 29 | |
| 2.6 to 47 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Rockwell B Hardness | 42 to 91 | |
| 82 to 120 |
| Rockwell Superficial 30T Hardness | 45 to 76 | |
| 71 to 92 |
| Shear Modulus, GPa | 42 | |
| 43 |
| Shear Strength, MPa | 320 to 370 | |
| 350 to 530 |
| Tensile Strength: Ultimate (UTS), MPa | 380 to 620 | |
| 500 to 1060 |
| Tensile Strength: Yield (Proof), MPa | 390 to 570 | |
| 170 to 910 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 200 |
| Melting Completion (Liquidus), °C | 1040 | |
| 1020 |
| Melting Onset (Solidus), °C | 930 | |
| 960 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 400 |
| Thermal Conductivity, W/m-K | 66 | |
| 36 |
| Thermal Expansion, µm/m-K | 18 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 14 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 14 | |
| 7.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 33 | |
| 31 |
| Density, g/cm3 | 8.8 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 3.2 | |
| 2.8 |
| Embodied Energy, MJ/kg | 51 | |
| 45 |
| Embodied Water, L/kg | 360 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 55 to 180 | |
| 10 to 480 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 680 to 1450 | |
| 130 to 3640 |
| Stiffness to Weight: Axial, points | 7.0 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 18 | |
| 19 |
| Strength to Weight: Axial, points | 12 to 19 | |
| 16 to 34 |
| Strength to Weight: Bending, points | 13 to 18 | |
| 16 to 27 |
| Thermal Diffusivity, mm2/s | 20 | |
| 10 |
| Thermal Shock Resistance, points | 14 to 22 | |
| 18 to 39 |
Alloy Composition
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| Chromium (Cr), % | 0 | |
| 0.010 to 0.12 |
| Copper (Cu), % | 91.7 to 95 | |
| 93.8 to 96.1 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0.030 to 0.35 | |
| 0 |
| Silicon (Si), % | 0 | |
| 2.7 to 3.4 |
| Tin (Sn), % | 5.0 to 7.0 | |
| 1.2 to 1.9 |
| Zinc (Zn), % | 0 to 0.3 | |
| 0 to 0.5 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.2 |