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CR019A Copper vs. AWS BAg-21

CR019A copper belongs to the copper alloys classification, while AWS BAg-21 belongs to the otherwise unclassified metals. They have a modest 29% 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 (13, in this case) are not shown.

For each property being compared, the top bar is CR019A copper and the bottom bar is AWS BAg-21.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
85
Poisson's Ratio 0.34
0.36
Shear Modulus, GPa 43
31
Tensile Strength: Ultimate (UTS), MPa 220
150

Thermal Properties

Latent Heat of Fusion, J/g 210
140
Melting Completion (Liquidus), °C 1090
800
Melting Onset (Solidus), °C 1040
690
Specific Heat Capacity, J/kg-K 390
280
Thermal Expansion, µm/m-K 17
19

Otherwise Unclassified Properties

Density, g/cm3 9.0
9.8
Embodied Energy, MJ/kg 42
970

Common Calculations

Stiffness to Weight: Axial, points 7.2
4.8
Stiffness to Weight: Bending, points 18
15
Strength to Weight: Axial, points 6.8
4.2
Strength to Weight: Bending, points 9.0
6.4
Thermal Shock Resistance, points 7.8
6.6

Alloy Composition


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Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.874 to 99.92
27.5 to 29.5
Nickel (Ni), % 0
2.0 to 3.0
Silver (Ag), % 0.080 to 0.12
62 to 64
Tin (Sn), % 0
5.0 to 7.0
Residuals, % 0
0 to 0.15