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C70250 Copper vs. C72200 Copper-nickel

Both C70250 copper and C72200 copper-nickel are copper alloys. They have 85% of their average alloy composition in common. There are 24 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 C70250 copper and the bottom bar is C72200 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
130
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
48
Tensile Strength: Ultimate (UTS), MPa 520 to 740
350 to 580

Thermal Properties

Latent Heat of Fusion, J/g 220
220
Maximum Temperature: Mechanical, °C 210
230
Melting Completion (Liquidus), °C 1100
1180
Melting Onset (Solidus), °C 1080
1120
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 170
34
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36 to 50
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 37 to 51
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 31
36
Density, g/cm3 8.9
8.9
Embodied Carbon, kg CO2/kg material 2.9
3.9
Embodied Energy, MJ/kg 45
59
Embodied Water, L/kg 310
300

Common Calculations

Stiffness to Weight: Axial, points 7.4
8.0
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 16 to 23
11 to 18
Strength to Weight: Bending, points 16 to 21
12 to 17
Thermal Diffusivity, mm2/s 49
9.6
Thermal Shock Resistance, points 18 to 26
12 to 20

Alloy Composition

Chromium (Cr), % 0
0.3 to 0.7
Copper (Cu), % 92.7 to 97.5
78.1 to 84.2
Iron (Fe), % 0
0.5 to 1.0
Lead (Pb), % 0 to 0.050
0 to 0.050
Magnesium (Mg), % 0.050 to 0.3
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Nickel (Ni), % 2.2 to 4.2
15 to 18
Silicon (Si), % 0.25 to 1.2
0
Zinc (Zn), % 0 to 1.0
0 to 1.0
Residuals, % 0
0 to 0.2