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AWS BVAu-7 vs. C71520 Copper-nickel

AWS BVAu-7 belongs to the otherwise unclassified metals classification, while C71520 copper-nickel belongs to the copper alloys. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. There are 15 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is AWS BVAu-7 and the bottom bar is C71520 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
140
Poisson's Ratio 0.38
0.33
Shear Modulus, GPa 45
51
Tensile Strength: Ultimate (UTS), MPa 200
370 to 570

Thermal Properties

Latent Heat of Fusion, J/g 140
230
Melting Completion (Liquidus), °C 1120
1170
Melting Onset (Solidus), °C 1100
1120
Specific Heat Capacity, J/kg-K 240
400
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Density, g/cm3 15
8.9

Common Calculations

Stiffness to Weight: Axial, points 4.7
8.6
Stiffness to Weight: Bending, points 11
19
Strength to Weight: Axial, points 3.7
12 to 18
Strength to Weight: Bending, points 5.1
13 to 17
Thermal Shock Resistance, points 8.9
12 to 19

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0 to 0.050
Cobalt (Co), % 0 to 0.060
0
Copper (Cu), % 0
65 to 71.6
Gold (Au), % 49.5 to 50.5
0
Iron (Fe), % 0
0.4 to 1.0
Lead (Pb), % 0 to 0.0020
0 to 0.020
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 24.5 to 25.5
28 to 33
Palladium (Pd), % 23.9 to 26
0
Phosphorus (P), % 0 to 0.0020
0 to 0.2
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.0010
0 to 0.5
Residuals, % 0
0 to 0.5