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C72900 Copper-nickel vs. C64210 Bronze

Both C72900 copper-nickel and C64210 bronze are copper alloys. They have 77% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C72900 copper-nickel and the bottom bar is C64210 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 6.0 to 20
35
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 45
42
Shear Strength, MPa 540 to 630
380
Tensile Strength: Ultimate (UTS), MPa 870 to 1080
570
Tensile Strength: Yield (Proof), MPa 700 to 920
290

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 210
210
Melting Completion (Liquidus), °C 1120
1040
Melting Onset (Solidus), °C 950
990
Specific Heat Capacity, J/kg-K 380
430
Thermal Conductivity, W/m-K 29
48
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
13
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
14

Otherwise Unclassified Properties

Base Metal Price, % relative 39
29
Density, g/cm3 8.8
8.4
Embodied Carbon, kg CO2/kg material 4.6
3.0
Embodied Energy, MJ/kg 72
49
Embodied Water, L/kg 360
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 210
170
Resilience: Unit (Modulus of Resilience), kJ/m3 2030 to 3490
360
Stiffness to Weight: Axial, points 7.6
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 27 to 34
19
Strength to Weight: Bending, points 23 to 27
18
Thermal Diffusivity, mm2/s 8.6
13
Thermal Shock Resistance, points 31 to 38
21

Alloy Composition

Aluminum (Al), % 0
6.3 to 7.0
Arsenic (As), % 0
0 to 0.15
Copper (Cu), % 74.1 to 78
89 to 92.2
Iron (Fe), % 0 to 0.5
0 to 0.3
Lead (Pb), % 0 to 0.020
0 to 0.050
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.3
0 to 0.1
Nickel (Ni), % 14.5 to 15.5
0 to 0.25
Niobium (Nb), % 0 to 0.1
0
Silicon (Si), % 0
1.5 to 2.0
Tin (Sn), % 7.5 to 8.5
0 to 0.2
Zinc (Zn), % 0 to 0.5
0 to 0.5
Residuals, % 0
0 to 0.5