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AWS BAg-2 vs. C72700 Copper-nickel

AWS BAg-2 belongs to the otherwise unclassified metals classification, while C72700 copper-nickel belongs to the copper alloys. They have a modest 26% 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 (13, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-2 and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
120
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 31
44
Tensile Strength: Ultimate (UTS), MPa 180
460 to 1070

Thermal Properties

Latent Heat of Fusion, J/g 130
210
Melting Completion (Liquidus), °C 700
1100
Melting Onset (Solidus), °C 610
930
Specific Heat Capacity, J/kg-K 310
380
Thermal Expansion, µm/m-K 22
17

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.8
Embodied Carbon, kg CO2/kg material 35
4.0
Embodied Energy, MJ/kg 550
62

Common Calculations

Stiffness to Weight: Axial, points 5.1
7.4
Stiffness to Weight: Bending, points 16
19
Strength to Weight: Axial, points 5.6
14 to 34
Strength to Weight: Bending, points 7.9
15 to 26
Thermal Shock Resistance, points 7.0
16 to 38

Alloy Composition

Cadmium (Cd), % 17 to 19
0
Copper (Cu), % 25 to 27
82.1 to 86
Iron (Fe), % 0
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0
0.050 to 0.3
Nickel (Ni), % 0
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Silver (Ag), % 34 to 36
0
Tin (Sn), % 0
5.5 to 6.5
Zinc (Zn), % 19 to 23
0 to 0.5
Residuals, % 0
0 to 0.3