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C71640 Copper-nickel vs. ASTM B631 Class C

C71640 copper-nickel belongs to the copper alloys classification, while ASTM B631 class C belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C71640 copper-nickel and the bottom bar is ASTM B631 class C.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
180 to 190
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 52
66 to 71

Thermal Properties

Latent Heat of Fusion, J/g 240
140 to 150
Melting Completion (Liquidus), °C 1180
2090 to 2230
Specific Heat Capacity, J/kg-K 410
180
Thermal Conductivity, W/m-K 29
450 to 490
Thermal Expansion, µm/m-K 15
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
55 to 63
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
36 to 43

Otherwise Unclassified Properties

Density, g/cm3 8.9
13 to 14
Embodied Carbon, kg CO2/kg material 5.0
55 to 59
Embodied Energy, MJ/kg 73
860 to 920

Common Calculations

Stiffness to Weight: Axial, points 8.7
7.4 to 7.6
Stiffness to Weight: Bending, points 20
14
Thermal Diffusivity, mm2/s 8.2
180 to 200