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AWS BAu-1 vs. Solder Alloy 401

Both AWS BAu-1 and solder alloy 401 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 (10, in this case) are not shown.

For each property being compared, the top bar is AWS BAu-1 and the bottom bar is solder alloy 401.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
50
Poisson's Ratio 0.37
0.36
Shear Modulus, GPa 40
19
Tensile Strength: Ultimate (UTS), MPa 210
29

Thermal Properties

Latent Heat of Fusion, J/g 150
60
Melting Completion (Liquidus), °C 1020
230
Melting Onset (Solidus), °C 990
230
Specific Heat Capacity, J/kg-K 290
220
Thermal Expansion, µm/m-K 16
22

Otherwise Unclassified Properties

Density, g/cm3 13
7.3

Common Calculations

Stiffness to Weight: Axial, points 4.7
3.8
Stiffness to Weight: Bending, points 12
17
Strength to Weight: Axial, points 4.5
1.1
Strength to Weight: Bending, points 6.1
2.9
Thermal Shock Resistance, points 8.5
1.9

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 61.9 to 63
0.5 to 0.9
Gold (Au), % 37 to 38
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Nickel (Ni), % 0
0 to 0.010
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
98.5 to 99.5
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 0 to 0.15
0