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AWS BAg-9 vs. C71640 Copper-nickel

AWS BAg-9 belongs to the otherwise unclassified metals classification, while C71640 copper-nickel belongs to the copper alloys. They have a modest 21% of their average alloy composition in common, which, by itself, doesn't mean much. There are 16 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-9 and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
140
Poisson's Ratio 0.35
0.33
Shear Modulus, GPa 31
52
Tensile Strength: Ultimate (UTS), MPa 140
490 to 630

Thermal Properties

Latent Heat of Fusion, J/g 130
240
Melting Completion (Liquidus), °C 720
1180
Melting Onset (Solidus), °C 670
1120
Specific Heat Capacity, J/kg-K 290
410
Thermal Expansion, µm/m-K 20
15

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.9
Embodied Energy, MJ/kg 980
73

Common Calculations

Stiffness to Weight: Axial, points 4.8
8.7
Stiffness to Weight: Bending, points 15
20
Strength to Weight: Axial, points 4.1
15 to 20
Strength to Weight: Bending, points 6.3
16 to 18
Thermal Shock Resistance, points 6.0
16 to 21

Alloy Composition


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Copper (Cu), % 19 to 21
61.7 to 67.8
Iron (Fe), % 0
1.7 to 2.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0
1.5 to 2.5
Nickel (Ni), % 0
29 to 32
Silver (Ag), % 64 to 66
0
Zinc (Zn), % 13 to 17
0 to 1.0
Residuals, % 0 to 0.15
0 to 0.5