C64200 Bronze vs. C72700 Copper-nickel
Both C64200 bronze and C72700 copper-nickel are copper alloys. They have 85% of their average alloy composition in common.
For each property being compared, the top bar is C64200 bronze and the bottom bar is C72700 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 110 | |
120 |
Elongation at Break, % | 14 to 35 | |
4.0 to 36 |
Poisson's Ratio | 0.34 | |
0.34 |
Shear Modulus, GPa | 42 | |
44 |
Shear Strength, MPa | 330 to 390 | |
310 to 620 |
Tensile Strength: Ultimate (UTS), MPa | 540 to 640 | |
460 to 1070 |
Tensile Strength: Yield (Proof), MPa | 230 to 320 | |
580 to 1060 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
210 |
Maximum Temperature: Mechanical, °C | 210 | |
200 |
Melting Completion (Liquidus), °C | 1000 | |
1100 |
Melting Onset (Solidus), °C | 980 | |
930 |
Specific Heat Capacity, J/kg-K | 430 | |
380 |
Thermal Conductivity, W/m-K | 45 | |
54 |
Thermal Expansion, µm/m-K | 18 | |
17 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 8.0 | |
11 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
11 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 29 | |
36 |
Density, g/cm3 | 8.3 | |
8.8 |
Embodied Carbon, kg CO2/kg material | 3.0 | |
4.0 |
Embodied Energy, MJ/kg | 50 | |
62 |
Embodied Water, L/kg | 370 | |
350 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 73 to 170 | |
20 to 380 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 240 to 470 | |
1420 to 4770 |
Stiffness to Weight: Axial, points | 7.5 | |
7.4 |
Stiffness to Weight: Bending, points | 19 | |
19 |
Strength to Weight: Axial, points | 18 to 21 | |
14 to 34 |
Strength to Weight: Bending, points | 18 to 20 | |
15 to 26 |
Thermal Diffusivity, mm2/s | 13 | |
16 |
Thermal Shock Resistance, points | 20 to 23 | |
16 to 38 |
Alloy Composition
Aluminum (Al), % | 6.3 to 7.6 | |
0 |
Arsenic (As), % | 0 to 0.15 | |
0 |
Copper (Cu), % | 88.2 to 92.2 | |
82.1 to 86 |
Iron (Fe), % | 0 to 0.3 | |
0 to 0.5 |
Lead (Pb), % | 0 to 0.050 | |
0 to 0.020 |
Magnesium (Mg), % | 0 | |
0 to 0.15 |
Manganese (Mn), % | 0 to 0.1 | |
0.050 to 0.3 |
Nickel (Ni), % | 0 to 0.25 | |
8.5 to 9.5 |
Niobium (Nb), % | 0 | |
0 to 0.1 |
Silicon (Si), % | 1.5 to 2.2 | |
0 |
Tin (Sn), % | 0 to 0.2 | |
5.5 to 6.5 |
Zinc (Zn), % | 0 to 0.5 | |
0 to 0.5 |
Residuals, % | 0 | |
0 to 0.3 |