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AWS BAu-3 vs. AWS BAg-1

Both AWS BAu-3 and AWS BAg-1 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-3 and the bottom bar is AWS BAg-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
75
Poisson's Ratio 0.37
0.33
Shear Modulus, GPa 41
28
Tensile Strength: Ultimate (UTS), MPa 220
170

Thermal Properties

Brazing Temperature, °C 1030 to 1090
620 to 760
Latent Heat of Fusion, J/g 160
110
Melting Completion (Liquidus), °C 1030
620
Melting Onset (Solidus), °C 970
610
Specific Heat Capacity, J/kg-K 300
280
Thermal Expansion, µm/m-K 16
23

Otherwise Unclassified Properties

Density, g/cm3 13
9.2

Common Calculations

Stiffness to Weight: Axial, points 5.0
4.6
Stiffness to Weight: Bending, points 13
15
Strength to Weight: Axial, points 4.9
5.1
Strength to Weight: Bending, points 6.4
7.4
Thermal Shock Resistance, points 8.7
7.0

Alloy Composition


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Cadmium (Cd), % 0
23 to 25
Copper (Cu), % 60.9 to 63
14 to 16
Gold (Au), % 34.5 to 35.5
0
Nickel (Ni), % 2.5 to 3.5
0
Silver (Ag), % 0
44 to 46
Zinc (Zn), % 0
14 to 18
Residuals, % 0 to 0.15
0 to 0.15