C67400 Bronze vs. C71520 Copper-nickel
Both C67400 bronze and C71520 copper-nickel are copper alloys. They have 60% of their average alloy composition in common.
For each property being compared, the top bar is C67400 bronze and the bottom bar is C71520 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 110 | |
140 |
Elongation at Break, % | 22 to 28 | |
10 to 45 |
Poisson's Ratio | 0.31 | |
0.33 |
Rockwell B Hardness | 78 to 85 | |
35 to 86 |
Shear Modulus, GPa | 41 | |
51 |
Shear Strength, MPa | 310 to 350 | |
250 to 340 |
Tensile Strength: Ultimate (UTS), MPa | 480 to 610 | |
370 to 570 |
Tensile Strength: Yield (Proof), MPa | 250 to 370 | |
140 to 430 |
Thermal Properties
Latent Heat of Fusion, J/g | 190 | |
230 |
Maximum Temperature: Mechanical, °C | 130 | |
260 |
Melting Completion (Liquidus), °C | 890 | |
1170 |
Melting Onset (Solidus), °C | 870 | |
1120 |
Specific Heat Capacity, J/kg-K | 400 | |
400 |
Thermal Conductivity, W/m-K | 100 | |
32 |
Thermal Expansion, µm/m-K | 21 | |
15 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 23 | |
5.7 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 26 | |
5.8 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 23 | |
40 |
Density, g/cm3 | 7.9 | |
8.9 |
Embodied Carbon, kg CO2/kg material | 2.8 | |
5.0 |
Embodied Energy, MJ/kg | 48 | |
73 |
Embodied Water, L/kg | 330 | |
280 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
54 to 130 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 to 660 | |
67 to 680 |
Stiffness to Weight: Axial, points | 7.5 | |
8.6 |
Stiffness to Weight: Bending, points | 20 | |
19 |
Strength to Weight: Axial, points | 17 to 22 | |
12 to 18 |
Strength to Weight: Bending, points | 17 to 20 | |
13 to 17 |
Thermal Diffusivity, mm2/s | 32 | |
8.9 |
Thermal Shock Resistance, points | 16 to 20 | |
12 to 19 |
Alloy Composition
Aluminum (Al), % | 0.5 to 2.0 | |
0 |
Carbon (C), % | 0 | |
0 to 0.050 |
Copper (Cu), % | 57 to 60 | |
65 to 71.6 |
Iron (Fe), % | 0 to 0.35 | |
0.4 to 1.0 |
Lead (Pb), % | 0 to 0.5 | |
0 to 0.020 |
Manganese (Mn), % | 2.0 to 3.5 | |
0 to 1.0 |
Nickel (Ni), % | 0 to 0.25 | |
28 to 33 |
Phosphorus (P), % | 0 | |
0 to 0.2 |
Silicon (Si), % | 0.5 to 1.5 | |
0 |
Sulfur (S), % | 0 | |
0 to 0.020 |
Tin (Sn), % | 0 to 0.3 | |
0 |
Zinc (Zn), % | 31.1 to 40 | |
0 to 0.5 |
Residuals, % | 0 | |
0 to 0.5 |