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ASTM B631 Class A vs. C82700 Copper

ASTM B631 class A belongs to the otherwise unclassified metals classification, while C82700 copper belongs to the copper alloys. There are 16 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 ASTM B631 class A and the bottom bar is C82700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 85 to 86
46

Thermal Properties

Latent Heat of Fusion, J/g 160
240
Melting Completion (Liquidus), °C 2680 to 2690
950
Specific Heat Capacity, J/kg-K 160
380
Thermal Conductivity, W/m-K 420
130
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40 to 47
20
Electrical Conductivity: Equal Weight (Specific), % IACS 25 to 29
21

Otherwise Unclassified Properties

Density, g/cm3 15
8.7
Embodied Carbon, kg CO2/kg material 43
12
Embodied Energy, MJ/kg 670
180

Common Calculations

Stiffness to Weight: Axial, points 8.5
7.8
Stiffness to Weight: Bending, points 14
19
Thermal Diffusivity, mm2/s 180
39