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AWS BAg-9 vs. C55280 Copper

AWS BAg-9 belongs to the otherwise unclassified metals classification, while C55280 copper belongs to the copper alloys. They have a modest 22% 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 (2, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-9 and the bottom bar is C55280 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
110
Poisson's Ratio 0.35
0.34
Shear Modulus, GPa 31
40
Tensile Strength: Ultimate (UTS), MPa 140
180

Thermal Properties

Brazing Temperature, °C 720 to 840
730 to 820
Latent Heat of Fusion, J/g 130
190
Melting Completion (Liquidus), °C 720
790
Melting Onset (Solidus), °C 670
640
Specific Heat Capacity, J/kg-K 290
410
Thermal Expansion, µm/m-K 20
16

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.5
Embodied Energy, MJ/kg 980
67

Common Calculations

Stiffness to Weight: Axial, points 4.8
6.9
Stiffness to Weight: Bending, points 15
19
Strength to Weight: Axial, points 4.1
5.9
Strength to Weight: Bending, points 6.3
8.3
Thermal Shock Resistance, points 6.0
7.4

Alloy Composition


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Copper (Cu), % 19 to 21
90.5 to 91.4
Phosphorus (P), % 0
6.8 to 7.2
Silver (Ag), % 64 to 66
1.8 to 2.2
Zinc (Zn), % 13 to 17
0
Residuals, % 0 to 0.15
0 to 0.15