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C74000 Nickel Silver vs. ASTM B685 Alloy

C74000 nickel silver belongs to the copper alloys classification, while ASTM B685 alloy belongs to the otherwise unclassified metals. They have 40% of their average alloy composition in common. There are 17 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C74000 nickel silver and the bottom bar is ASTM B685 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Poisson's Ratio 0.32
0.37
Shear Modulus, GPa 44
43
Tensile Strength: Ultimate (UTS), MPa 380 to 590
660 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 200
180
Melting Completion (Liquidus), °C 990
1230
Melting Onset (Solidus), °C 950
1200
Specific Heat Capacity, J/kg-K 390
300
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 42
4.1

Otherwise Unclassified Properties

Density, g/cm3 8.5
11

Common Calculations

Stiffness to Weight: Axial, points 7.7
6.1
Stiffness to Weight: Bending, points 19
15
Strength to Weight: Axial, points 13 to 19
17 to 27
Strength to Weight: Bending, points 14 to 18
16 to 21
Thermal Shock Resistance, points 13 to 19
28 to 46

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 69 to 73.5
39.5 to 40.5
Iron (Fe), % 0 to 0.25
0 to 0.050
Lead (Pb), % 0 to 0.1
0 to 0.030
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 9.0 to 11
0
Palladium (Pd), % 0
59 to 60.5
Silver (Ag), % 0
0 to 0.1
Zinc (Zn), % 14.2 to 22
0 to 0.060
Residuals, % 0
0 to 0.2