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AWS BAu-3 vs. Solder Alloy 161

Both AWS BAu-3 and solder alloy 161 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 15 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS BAu-3 and the bottom bar is solder alloy 161.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
38
Poisson's Ratio 0.37
0.39
Shear Modulus, GPa 41
14
Tensile Strength: Ultimate (UTS), MPa 220
53

Thermal Properties

Latent Heat of Fusion, J/g 160
48
Melting Completion (Liquidus), °C 1030
190
Melting Onset (Solidus), °C 970
180
Specific Heat Capacity, J/kg-K 300
190
Thermal Expansion, µm/m-K 16
25

Otherwise Unclassified Properties

Density, g/cm3 13
8.9

Common Calculations

Stiffness to Weight: Axial, points 5.0
2.4
Stiffness to Weight: Bending, points 13
13
Strength to Weight: Axial, points 4.9
1.7
Strength to Weight: Bending, points 6.4
3.5
Thermal Shock Resistance, points 8.7
4.1

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 60.9 to 63
1.2 to 1.6
Gold (Au), % 34.5 to 35.5
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0
37.3 to 39.3
Nickel (Ni), % 2.5 to 3.5
0 to 0.010
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
59.5 to 60.5
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 0 to 0.15
0