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ASTM B631 Class B vs. ASTM B596 Au-Cu

Both ASTM B631 class B and ASTM B596 Au-Cu are otherwise unclassified metals. There are 12 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ASTM B631 class B and the bottom bar is ASTM B596 Au-Cu.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
100
Poisson's Ratio 0.31
0.41
Shear Modulus, GPa 78 to 79
36

Thermal Properties

Latent Heat of Fusion, J/g 150
77
Melting Completion (Liquidus), °C 2460 to 2480
1060
Specific Heat Capacity, J/kg-K 170
150
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 53
14
Electrical Conductivity: Equal Weight (Specific), % IACS 32 to 34
6.7

Otherwise Unclassified Properties

Density, g/cm3 14
18

Common Calculations

Stiffness to Weight: Axial, points 8.1
3.1
Stiffness to Weight: Bending, points 14
8.5