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ASTM B631 Class A vs. C77100 Nickel Silver

ASTM B631 class A belongs to the otherwise unclassified metals classification, while C77100 nickel silver belongs to the copper alloys. 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 ASTM B631 class A and the bottom bar is C77100 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Poisson's Ratio 0.3
0.31
Shear Modulus, GPa 85 to 86
45

Thermal Properties

Latent Heat of Fusion, J/g 160
180
Melting Completion (Liquidus), °C 2680 to 2690
990
Specific Heat Capacity, J/kg-K 160
390
Thermal Conductivity, W/m-K 420
40
Thermal Expansion, µm/m-K 11
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40 to 47
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 25 to 29
8.5

Otherwise Unclassified Properties

Density, g/cm3 15
8.1
Embodied Carbon, kg CO2/kg material 43
3.5
Embodied Energy, MJ/kg 670
56

Common Calculations

Stiffness to Weight: Axial, points 8.5
7.8
Stiffness to Weight: Bending, points 14
20
Thermal Diffusivity, mm2/s 180
13