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AWS BVAu-8 vs. Solder Alloy 402

Both AWS BVAu-8 and solder alloy 402 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. 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 BVAu-8 and the bottom bar is solder alloy 402.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
52
Poisson's Ratio 0.42
0.36
Shear Modulus, GPa 36
19
Tensile Strength: Ultimate (UTS), MPa 140
57

Thermal Properties

Latent Heat of Fusion, J/g 71
64
Melting Completion (Liquidus), °C 1240
310
Melting Onset (Solidus), °C 1200
230
Specific Heat Capacity, J/kg-K 140
230
Thermal Expansion, µm/m-K 14
22

Otherwise Unclassified Properties

Density, g/cm3 19
7.3

Common Calculations

Stiffness to Weight: Axial, points 3.0
3.9
Stiffness to Weight: Bending, points 8.3
17
Strength to Weight: Axial, points 2.1
2.2
Strength to Weight: Bending, points 3.2
4.5
Thermal Shock Resistance, points 7.1
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 0.1
Cadmium (Cd), % 0 to 0.0010
0 to 0.0020
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 0
2.5 to 3.5
Gold (Au), % 91 to 93
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0 to 0.0020
0 to 0.070
Nickel (Ni), % 0
0 to 0.010
Palladium (Pd), % 7.0 to 9.0
0
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
95.9 to 97.5
Zinc (Zn), % 0 to 0.0010
0 to 0.0010