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ASTM B628 Ag-Cu vs. C76400 Nickel Silver

ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while C76400 nickel silver belongs to the copper alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM B628 Ag-Cu and the bottom bar is C76400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
120
Poisson's Ratio 0.36
0.32
Shear Modulus, GPa 31
46
Tensile Strength: Ultimate (UTS), MPa 350 to 760
590 to 610

Thermal Properties

Latent Heat of Fusion, J/g 140
200
Melting Completion (Liquidus), °C 780
990
Melting Onset (Solidus), °C 780
950
Specific Heat Capacity, J/kg-K 280
400
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 84
5.7
Electrical Conductivity: Equal Weight (Specific), % IACS 75
6.1

Otherwise Unclassified Properties

Density, g/cm3 10
8.4

Common Calculations

Stiffness to Weight: Axial, points 4.6
8.1
Stiffness to Weight: Bending, points 14
20
Strength to Weight: Axial, points 9.5 to 21
19 to 20
Strength to Weight: Bending, points 11 to 18
18 to 19
Thermal Shock Resistance, points 16 to 34
19 to 20

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0
Cadmium (Cd), % 0 to 0.050
0
Copper (Cu), % 26.6 to 29
58.5 to 61.5
Iron (Fe), % 0 to 0.050
0 to 0.25
Lead (Pb), % 0 to 0.030
0 to 0.050
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.010
16.5 to 19.5
Phosphorus (P), % 0 to 0.030
0
Silver (Ag), % 71 to 73
0
Zinc (Zn), % 0 to 0.060
17.7 to 25
Residuals, % 0 to 0.21
0 to 0.5