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AWS BAu-6 vs. Solder Alloy 502

Both AWS BAu-6 and solder alloy 502 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 (8, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS BAu-6 and the bottom bar is solder alloy 502.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
53
Poisson's Ratio 0.39
0.36
Shear Modulus, GPa 43
19
Tensile Strength: Ultimate (UTS), MPa 190
58

Thermal Properties

Latent Heat of Fusion, J/g 120
66
Melting Completion (Liquidus), °C 1050
350
Melting Onset (Solidus), °C 1010
220
Specific Heat Capacity, J/kg-K 210
230
Thermal Expansion, µm/m-K 13
22

Otherwise Unclassified Properties

Density, g/cm3 16
7.4

Common Calculations

Stiffness to Weight: Axial, points 4.0
4.0
Stiffness to Weight: Bending, points 10
17
Strength to Weight: Axial, points 3.2
2.2
Strength to Weight: Bending, points 4.5
4.5
Thermal Shock Resistance, points 8.5
3.6

Alloy Composition

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 0.080
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 0
3.5 to 4.5
Gold (Au), % 69.5 to 70.5
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), % 21.5 to 22.5
0 to 0.010
Palladium (Pd), % 7.5 to 8.5
0
Silver (Ag), % 0
0.8 to 1.2
Tin (Sn), % 0
93.8 to 95.7
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 0 to 0.15
0