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ASTM B628 Ag-Cu vs. AWS ENiCu-7

ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while AWS ENiCu-7 belongs to the nickel alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 18 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM B628 Ag-Cu and the bottom bar is AWS ENiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
160
Elongation at Break, % 1.1 to 17
34
Poisson's Ratio 0.36
0.32
Shear Modulus, GPa 31
62
Tensile Strength: Ultimate (UTS), MPa 350 to 760
550

Thermal Properties

Latent Heat of Fusion, J/g 140
280
Melting Completion (Liquidus), °C 780
1270
Melting Onset (Solidus), °C 780
1230
Specific Heat Capacity, J/kg-K 280
430
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 84
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 75
3.3

Otherwise Unclassified Properties

Density, g/cm3 10
8.7

Common Calculations

Stiffness to Weight: Axial, points 4.6
10
Stiffness to Weight: Bending, points 14
21
Strength to Weight: Axial, points 9.5 to 21
17
Strength to Weight: Bending, points 11 to 18
17
Thermal Shock Resistance, points 16 to 34
18

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.75
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.1
Copper (Cu), % 26.6 to 29
20.6 to 38
Iron (Fe), % 0 to 0.050
0 to 2.5
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 4.0
Nickel (Ni), % 0 to 0.010
62 to 69
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0
0 to 1.5
Silver (Ag), % 71 to 73
0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0 to 1.0
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.21
0 to 0.5