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C12900 Copper vs. 70Ag-30Ni Alloy

C12900 copper belongs to the copper alloys classification, while 70Ag-30Ni alloy belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is C12900 copper and the bottom bar is 70Ag-30Ni alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Poisson's Ratio 0.34
0.35
Shear Modulus, GPa 43
39
Tensile Strength: Ultimate (UTS), MPa 220 to 420
320 to 530

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Melting Completion (Liquidus), °C 1080
960
Melting Onset (Solidus), °C 1030
960
Specific Heat Capacity, J/kg-K 390
300
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
69
Electrical Conductivity: Equal Weight (Specific), % IACS 98
62

Otherwise Unclassified Properties

Density, g/cm3 9.0
10

Common Calculations

Stiffness to Weight: Axial, points 7.2
5.8
Stiffness to Weight: Bending, points 18
16
Strength to Weight: Axial, points 6.8 to 13
8.8 to 15
Strength to Weight: Bending, points 9.1 to 14
10 to 15
Thermal Shock Resistance, points 7.8 to 15
13 to 21

Alloy Composition

Antimony (Sb), % 0 to 0.0030
0
Arsenic (As), % 0 to 0.012
0
Bismuth (Bi), % 0 to 0.0030
0
Copper (Cu), % 99.88 to 100
0
Lead (Pb), % 0 to 0.0040
0
Nickel (Ni), % 0 to 0.050
28.8 to 31
Silver (Ag), % 0 to 0.054
69 to 71
Tellurium (Te), % 0 to 0.025
0
Residuals, % 0
0 to 0.2