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AWS BAg-9 vs. C82700 Copper

AWS BAg-9 belongs to the otherwise unclassified metals classification, while C82700 copper belongs to the copper alloys. They have a modest 20% 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 AWS BAg-9 and the bottom bar is C82700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
120
Poisson's Ratio 0.35
0.33
Shear Modulus, GPa 31
46
Tensile Strength: Ultimate (UTS), MPa 140
1200

Thermal Properties

Latent Heat of Fusion, J/g 130
240
Melting Completion (Liquidus), °C 720
950
Melting Onset (Solidus), °C 670
860
Specific Heat Capacity, J/kg-K 290
380
Thermal Expansion, µm/m-K 20
17

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.7
Embodied Energy, MJ/kg 980
180

Common Calculations

Stiffness to Weight: Axial, points 4.8
7.8
Stiffness to Weight: Bending, points 15
19
Strength to Weight: Axial, points 4.1
38
Strength to Weight: Bending, points 6.3
29
Thermal Shock Resistance, points 6.0
41

Alloy Composition


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Aluminum (Al), % 0
0 to 0.15
Beryllium (Be), % 0
2.4 to 2.6
Chromium (Cr), % 0
0 to 0.090
Copper (Cu), % 19 to 21
94.6 to 96.7
Iron (Fe), % 0
0 to 0.25
Lead (Pb), % 0
0 to 0.020
Nickel (Ni), % 0
1.0 to 1.5
Silicon (Si), % 0
0 to 0.15
Silver (Ag), % 64 to 66
0
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 13 to 17
0 to 0.1
Residuals, % 0 to 0.15
0 to 0.5