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C77600 Nickel Silver vs. ASTM B596 Au-Cu

C77600 nickel silver belongs to the copper alloys classification, while ASTM B596 Au-Cu belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is C77600 nickel silver and the bottom bar is ASTM B596 Au-Cu.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 30
4.3 to 17
Poisson's Ratio 0.3
0.41
Shear Modulus, GPa 43
36
Shear Strength, MPa 410
280 to 360
Tensile Strength: Ultimate (UTS), MPa 630
450 to 620

Thermal Properties

Latent Heat of Fusion, J/g 180
77
Melting Completion (Liquidus), °C 830
1060
Melting Onset (Solidus), °C 790
930
Specific Heat Capacity, J/kg-K 390
150
Thermal Expansion, µm/m-K 20
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
14
Electrical Conductivity: Equal Weight (Specific), % IACS 31
6.7

Otherwise Unclassified Properties

Density, g/cm3 7.9
18

Common Calculations

Stiffness to Weight: Axial, points 7.9
3.1
Stiffness to Weight: Bending, points 20
8.5
Strength to Weight: Axial, points 22
6.8 to 9.4
Strength to Weight: Bending, points 21
7.1 to 8.8
Thermal Shock Resistance, points 20
22 to 30

Alloy Composition

Copper (Cu), % 42 to 45
9.0 to 11
Gold (Au), % 0
89 to 91
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0 to 0.25
0
Nickel (Ni), % 12 to 14
0
Tin (Sn), % 0 to 0.15
0
Zinc (Zn), % 39.7 to 46
0
Residuals, % 0
0 to 0.4