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AWS BAu-6 vs. AWS BAg-7

Both AWS BAu-6 and AWS BAg-7 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. 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 BAu-6 and the bottom bar is AWS BAg-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
83
Poisson's Ratio 0.39
0.34
Shear Modulus, GPa 43
31
Tensile Strength: Ultimate (UTS), MPa 190
150

Thermal Properties

Brazing Temperature, °C 1050 to 1120
650 to 900
Latent Heat of Fusion, J/g 120
130
Melting Completion (Liquidus), °C 1050
650
Melting Onset (Solidus), °C 1010
620
Specific Heat Capacity, J/kg-K 210
290
Thermal Expansion, µm/m-K 13
20

Otherwise Unclassified Properties

Density, g/cm3 16
9.3

Common Calculations

Stiffness to Weight: Axial, points 4.0
4.9
Stiffness to Weight: Bending, points 10
16
Strength to Weight: Axial, points 3.2
4.5
Strength to Weight: Bending, points 4.5
6.7
Thermal Shock Resistance, points 8.5
6.4

Alloy Composition

Copper (Cu), % 0
21 to 23
Gold (Au), % 69.5 to 70.5
0
Nickel (Ni), % 21.5 to 22.5
0
Palladium (Pd), % 7.5 to 8.5
0
Silver (Ag), % 0
55 to 57
Tin (Sn), % 0
4.5 to 5.5
Zinc (Zn), % 0
15 to 19
Residuals, % 0
0 to 0.15