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AWS BAg-9 vs. AWS BVAu-2

Both AWS BAg-9 and AWS BVAu-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 (1, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-9 and the bottom bar is AWS BVAu-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
100
Poisson's Ratio 0.35
0.4
Shear Modulus, GPa 31
36
Tensile Strength: Ultimate (UTS), MPa 140
150

Thermal Properties

Brazing Temperature, °C 720 to 840
890 to 1010
Latent Heat of Fusion, J/g 130
92
Melting Completion (Liquidus), °C 720
890
Melting Onset (Solidus), °C 670
890
Specific Heat Capacity, J/kg-K 290
180
Thermal Expansion, µm/m-K 20
15

Otherwise Unclassified Properties

Density, g/cm3 9.6
17

Common Calculations

Stiffness to Weight: Axial, points 4.8
3.3
Stiffness to Weight: Bending, points 15
9.1
Strength to Weight: Axial, points 4.1
2.4
Strength to Weight: Bending, points 6.3
3.6
Thermal Shock Resistance, points 6.0
7.1

Alloy Composition


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Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0
0 to 0.0050
Copper (Cu), % 19 to 21
19.5 to 20.5
Gold (Au), % 0
79.5 to 80.5
Lead (Pb), % 0
0 to 0.0020
Phosphorus (P), % 0
0 to 0.0020
Silver (Ag), % 64 to 66
0
Zinc (Zn), % 13 to 17
0 to 0.0010
Residuals, % 0 to 0.15
0