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C70250 Copper vs. AWS BAg-4

C70250 copper belongs to the copper alloys classification, while AWS BAg-4 belongs to the otherwise unclassified metals. 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 (8, in this case) are not shown.

For each property being compared, the top bar is C70250 copper and the bottom bar is AWS BAg-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
91
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
34
Tensile Strength: Ultimate (UTS), MPa 520 to 740
150

Thermal Properties

Latent Heat of Fusion, J/g 220
140
Melting Completion (Liquidus), °C 1100
780
Melting Onset (Solidus), °C 1080
670
Specific Heat Capacity, J/kg-K 390
330
Thermal Expansion, µm/m-K 17
21

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.9
Embodied Carbon, kg CO2/kg material 2.9
40
Embodied Energy, MJ/kg 45
630

Common Calculations

Stiffness to Weight: Axial, points 7.4
5.7
Stiffness to Weight: Bending, points 18
17
Strength to Weight: Axial, points 16 to 23
4.7
Strength to Weight: Bending, points 16 to 21
7.1
Thermal Shock Resistance, points 18 to 26
5.7

Alloy Composition

Copper (Cu), % 92.7 to 97.5
29 to 31
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.050 to 0.3
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 2.2 to 4.2
1.5 to 2.5
Silicon (Si), % 0.25 to 1.2
0
Silver (Ag), % 0
39 to 41
Zinc (Zn), % 0 to 1.0
26 to 30
Residuals, % 0
0 to 0.15