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C64210 Bronze vs. C72200 Copper-nickel

Both C64210 bronze and C72200 copper-nickel are copper alloys. They have 82% 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 C72200 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
130
Poisson's Ratio 0.34
0.33
Rockwell B Hardness 77
71 to 86
Shear Modulus, GPa 42
48
Tensile Strength: Ultimate (UTS), MPa 570
350 to 580

Thermal Properties

Latent Heat of Fusion, J/g 250
220
Maximum Temperature: Mechanical, °C 210
230
Melting Completion (Liquidus), °C 1040
1180
Melting Onset (Solidus), °C 990
1120
Specific Heat Capacity, J/kg-K 430
400
Thermal Conductivity, W/m-K 48
34
Thermal Expansion, µm/m-K 18
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 14
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 29
36
Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 3.0
3.9
Embodied Energy, MJ/kg 49
59
Embodied Water, L/kg 360
300

Common Calculations

Stiffness to Weight: Axial, points 7.4
8.0
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19
11 to 18
Strength to Weight: Bending, points 18
12 to 17
Thermal Diffusivity, mm2/s 13
9.6
Thermal Shock Resistance, points 21
12 to 20

Alloy Composition

Aluminum (Al), % 6.3 to 7.0
0
Arsenic (As), % 0 to 0.15
0
Chromium (Cr), % 0
0.3 to 0.7
Copper (Cu), % 89 to 92.2
78.1 to 84.2
Iron (Fe), % 0 to 0.3
0.5 to 1.0
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0 to 0.1
0 to 1.0
Nickel (Ni), % 0 to 0.25
15 to 18
Silicon (Si), % 1.5 to 2.0
0
Tin (Sn), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
0 to 1.0
Residuals, % 0
0 to 0.2