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C18400 Copper vs. ASTM B631 Class A

C18400 copper belongs to the copper alloys classification, while ASTM B631 class A belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is C18400 copper and the bottom bar is ASTM B631 class A.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Poisson's Ratio 0.34
0.3
Rockwell B Hardness 16 to 84
63 to 98
Shear Modulus, GPa 44
85 to 86

Thermal Properties

Latent Heat of Fusion, J/g 210
160
Melting Completion (Liquidus), °C 1080
2680 to 2690
Specific Heat Capacity, J/kg-K 390
160
Thermal Conductivity, W/m-K 320
420
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
40 to 47
Electrical Conductivity: Equal Weight (Specific), % IACS 81
25 to 29

Otherwise Unclassified Properties

Density, g/cm3 8.9
15
Embodied Carbon, kg CO2/kg material 2.6
43
Embodied Energy, MJ/kg 41
670

Common Calculations

Stiffness to Weight: Axial, points 7.3
8.5
Stiffness to Weight: Bending, points 18
14
Thermal Diffusivity, mm2/s 94
180