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ASTM B522 Class II vs. C74000 Nickel Silver

ASTM B522 class II belongs to the otherwise unclassified metals classification, while C74000 nickel silver belongs to the copper alloys. There are 17 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 B522 class II and the bottom bar is C74000 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 96
120
Poisson's Ratio 0.41
0.32
Shear Modulus, GPa 34
44
Tensile Strength: Ultimate (UTS), MPa 280 to 490
380 to 590

Thermal Properties

Latent Heat of Fusion, J/g 77
200
Melting Completion (Liquidus), °C 1030
990
Melting Onset (Solidus), °C 1030
950
Specific Heat Capacity, J/kg-K 160
390
Thermal Expansion, µm/m-K 15
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
40
Electrical Conductivity: Equal Weight (Specific), % IACS 5.7
42

Otherwise Unclassified Properties

Density, g/cm3 17
8.5

Common Calculations

Stiffness to Weight: Axial, points 3.1
7.7
Stiffness to Weight: Bending, points 8.9
19
Strength to Weight: Axial, points 4.4 to 7.8
13 to 19
Strength to Weight: Bending, points 5.5 to 8.0
14 to 18
Thermal Shock Resistance, points 13 to 24
13 to 19

Alloy Composition

Copper (Cu), % 0
69 to 73.5
Gold (Au), % 68.5 to 69.5
0
Iron (Fe), % 0
0 to 0.25
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
9.0 to 11
Platinum (Pt), % 5.5 to 6.5
0
Silver (Ag), % 24.5 to 25.5
0
Sulfur (S), % 0 to 0.010
0
Zinc (Zn), % 0
14.2 to 22
Residuals, % 0
0 to 0.5