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ASTM B631 Class B vs. C18100 Copper

ASTM B631 class B belongs to the otherwise unclassified metals classification, while C18100 copper belongs to the copper alloys. 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 ASTM B631 class B and the bottom bar is C18100 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
120
Poisson's Ratio 0.31
0.34
Rockwell B Hardness 53 to 85
80
Shear Modulus, GPa 78 to 79
47

Thermal Properties

Latent Heat of Fusion, J/g 150
210
Melting Completion (Liquidus), °C 2460 to 2480
1080
Specific Heat Capacity, J/kg-K 170
390
Thermal Conductivity, W/m-K 450
320
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 53
80
Electrical Conductivity: Equal Weight (Specific), % IACS 32 to 34
81

Otherwise Unclassified Properties

Density, g/cm3 14
8.9
Embodied Carbon, kg CO2/kg material 49
2.7
Embodied Energy, MJ/kg 760
43

Common Calculations

Stiffness to Weight: Axial, points 8.1
7.3
Stiffness to Weight: Bending, points 14
18
Thermal Diffusivity, mm2/s 190
94