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AWS BVAg-31 vs. CR021A Copper

AWS BVAg-31 belongs to the otherwise unclassified metals classification, while CR021A copper belongs to the copper alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 15 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-31 and the bottom bar is CR021A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 90
120
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 33
43
Tensile Strength: Ultimate (UTS), MPa 180
230

Thermal Properties

Latent Heat of Fusion, J/g 150
210
Melting Completion (Liquidus), °C 850
1090
Melting Onset (Solidus), °C 820
1040
Specific Heat Capacity, J/kg-K 280
390
Thermal Expansion, µm/m-K 18
17

Otherwise Unclassified Properties

Density, g/cm3 10
9.0

Common Calculations

Stiffness to Weight: Axial, points 4.9
7.2
Stiffness to Weight: Bending, points 15
18
Strength to Weight: Axial, points 4.9
7.1
Strength to Weight: Bending, points 7.0
9.3
Thermal Shock Resistance, points 7.8
8.1

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 31 to 33
99.95 to 99.998
Lead (Pb), % 0 to 0.0020
0 to 0.0050
Palladium (Pd), % 8.0 to 12
0
Phosphorus (P), % 0 to 0.0020
0.0020 to 0.0070
Silver (Ag), % 57 to 59
0 to 0.015
Zinc (Zn), % 0 to 0.0010
0