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C64210 Bronze vs. C72500 Copper-nickel

Both C64210 bronze and C72500 copper-nickel are copper alloys. They have 88% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C64210 bronze and the bottom bar is C72500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.34
0.34
Rockwell B Hardness 77
75 to 100
Shear Modulus, GPa 42
45
Tensile Strength: Ultimate (UTS), MPa 570
420 to 780

Thermal Properties

Latent Heat of Fusion, J/g 250
210
Maximum Temperature: Mechanical, °C 210
210
Melting Completion (Liquidus), °C 1040
1130
Melting Onset (Solidus), °C 990
1060
Specific Heat Capacity, J/kg-K 430
390
Thermal Conductivity, W/m-K 48
54
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
11
Electrical Conductivity: Equal Weight (Specific), % IACS 14
11

Otherwise Unclassified Properties

Base Metal Price, % relative 29
35
Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 3.0
3.6
Embodied Energy, MJ/kg 49
55
Embodied Water, L/kg 360
320

Common Calculations

Stiffness to Weight: Axial, points 7.4
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19
13 to 24
Strength to Weight: Bending, points 18
14 to 21
Thermal Diffusivity, mm2/s 13
16
Thermal Shock Resistance, points 21
14 to 27

Alloy Composition


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Aluminum (Al), % 6.3 to 7.0
0
Arsenic (As), % 0 to 0.15
0
Copper (Cu), % 89 to 92.2
85.2 to 89.7
Iron (Fe), % 0 to 0.3
0 to 0.6
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0 to 0.1
0 to 0.2
Nickel (Ni), % 0 to 0.25
8.5 to 10.5
Silicon (Si), % 1.5 to 2.0
0
Tin (Sn), % 0 to 0.2
1.8 to 2.8
Zinc (Zn), % 0 to 0.5
0 to 0.5
Residuals, % 0 to 0.5
0 to 0.2