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C72800 Copper-nickel vs. C67400 Bronze

Both C72800 copper-nickel and C67400 bronze are copper alloys. They have 60% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C72800 copper-nickel and the bottom bar is C67400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 3.9 to 23
22 to 28
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 44
41
Shear Strength, MPa 330 to 740
310 to 350
Tensile Strength: Ultimate (UTS), MPa 520 to 1270
480 to 610
Tensile Strength: Yield (Proof), MPa 250 to 1210
250 to 370

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1080
890
Melting Onset (Solidus), °C 920
870
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 55
100
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
23
Electrical Conductivity: Equal Weight (Specific), % IACS 11
26

Otherwise Unclassified Properties

Base Metal Price, % relative 38
23
Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 4.4
2.8
Embodied Energy, MJ/kg 68
48
Embodied Water, L/kg 360
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 99
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 5650
300 to 660
Stiffness to Weight: Axial, points 7.4
7.5
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 17 to 40
17 to 22
Strength to Weight: Bending, points 16 to 30
17 to 20
Thermal Diffusivity, mm2/s 17
32
Thermal Shock Resistance, points 19 to 45
16 to 20

Alloy Composition

Aluminum (Al), % 0 to 0.1
0.5 to 2.0
Antimony (Sb), % 0 to 0.020
0
Bismuth (Bi), % 0 to 0.0010
0
Boron (B), % 0 to 0.0010
0
Copper (Cu), % 78.3 to 82.8
57 to 60
Iron (Fe), % 0 to 0.5
0 to 0.35
Lead (Pb), % 0 to 0.0050
0 to 0.5
Magnesium (Mg), % 0.0050 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
2.0 to 3.5
Nickel (Ni), % 9.5 to 10.5
0 to 0.25
Niobium (Nb), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.050
0.5 to 1.5
Sulfur (S), % 0 to 0.0025
0
Tin (Sn), % 7.5 to 8.5
0 to 0.3
Titanium (Ti), % 0 to 0.010
0
Zinc (Zn), % 0 to 1.0
31.1 to 40
Residuals, % 0
0 to 0.5