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AWS BAg-6 vs. AWS BAu-2

Both AWS BAg-6 and AWS BAu-2 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. 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 (2, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-6 and the bottom bar is AWS BAu-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 89
100
Poisson's Ratio 0.34
0.4
Shear Modulus, GPa 33
36
Tensile Strength: Ultimate (UTS), MPa 160
150

Thermal Properties

Brazing Temperature, °C 650 to 870
890 to 1010
Latent Heat of Fusion, J/g 140
92
Melting Completion (Liquidus), °C 770
890
Melting Onset (Solidus), °C 690
890
Specific Heat Capacity, J/kg-K 310
180
Thermal Expansion, µm/m-K 20
15

Otherwise Unclassified Properties

Density, g/cm3 9.3
17

Common Calculations

Stiffness to Weight: Axial, points 5.3
3.3
Stiffness to Weight: Bending, points 16
9.1
Strength to Weight: Axial, points 4.8
2.4
Strength to Weight: Bending, points 7.0
3.6
Thermal Shock Resistance, points 6.5
7.1

Alloy Composition


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Copper (Cu), % 33 to 35
19.4 to 20.5
Gold (Au), % 0
79.5 to 80.5
Silver (Ag), % 49 to 51
0
Zinc (Zn), % 14 to 18
0
Residuals, % 0 to 0.15
0 to 0.15