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AWS BAg-34 vs. C70400 Copper-nickel

AWS BAg-34 belongs to the otherwise unclassified metals classification, while C70400 copper-nickel belongs to the copper alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-34 and the bottom bar is C70400 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 89
120
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 34
45
Tensile Strength: Ultimate (UTS), MPa 170
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 140
210
Melting Completion (Liquidus), °C 720
1120
Melting Onset (Solidus), °C 650
1060
Specific Heat Capacity, J/kg-K 330
390
Thermal Expansion, µm/m-K 21
17

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.9
Embodied Carbon, kg CO2/kg material 38
3.0
Embodied Energy, MJ/kg 600
47

Common Calculations

Stiffness to Weight: Axial, points 5.6
7.5
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 5.4
9.3 to 9.8
Strength to Weight: Bending, points 7.7
11 to 12
Thermal Shock Resistance, points 6.5
10 to 11

Alloy Composition


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Copper (Cu), % 31 to 33
89.8 to 93.6
Iron (Fe), % 0
1.3 to 1.7
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0
0.3 to 0.8
Nickel (Ni), % 0
4.8 to 6.2
Silver (Ag), % 37 to 39
0
Tin (Sn), % 1.5 to 2.5
0
Zinc (Zn), % 26 to 30
0 to 1.0
Residuals, % 0 to 0.15
0 to 0.5