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AWS BVAu-4 vs. C71640 Copper-nickel

AWS BVAu-4 belongs to the otherwise unclassified metals classification, while C71640 copper-nickel belongs to the copper alloys. There are 15 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 AWS BVAu-4 and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
140
Poisson's Ratio 0.4
0.33
Shear Modulus, GPa 41
52
Tensile Strength: Ultimate (UTS), MPa 190
490 to 630

Thermal Properties

Latent Heat of Fusion, J/g 100
240
Melting Completion (Liquidus), °C 950
1180
Melting Onset (Solidus), °C 950
1120
Specific Heat Capacity, J/kg-K 190
410
Thermal Expansion, µm/m-K 14
15

Otherwise Unclassified Properties

Density, g/cm3 17
8.9

Common Calculations

Stiffness to Weight: Axial, points 3.6
8.7
Stiffness to Weight: Bending, points 9.3
20
Strength to Weight: Axial, points 3.0
15 to 20
Strength to Weight: Bending, points 4.2
16 to 18
Thermal Shock Resistance, points 8.7
16 to 21

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 0
61.7 to 67.8
Gold (Au), % 81.5 to 82.5
0
Iron (Fe), % 0
1.7 to 2.3
Lead (Pb), % 0 to 0.0020
0 to 0.050
Manganese (Mn), % 0
1.5 to 2.5
Nickel (Ni), % 17.5 to 18.5
29 to 32
Phosphorus (P), % 0 to 0.0020
0
Zinc (Zn), % 0 to 0.0010
0 to 1.0
Residuals, % 0
0 to 0.5