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AWS BVAu-4 vs. Solder Alloy 181

Both AWS BVAu-4 and solder alloy 181 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.

For each property being compared, the top bar is AWS BVAu-4 and the bottom bar is solder alloy 181.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
18
Poisson's Ratio 0.4
0.44
Shear Modulus, GPa 41
6.1
Tensile Strength: Ultimate (UTS), MPa 190
27

Thermal Properties

Latent Heat of Fusion, J/g 100
26
Melting Completion (Liquidus), °C 950
310
Melting Onset (Solidus), °C 950
300
Specific Heat Capacity, J/kg-K 190
130
Thermal Expansion, µm/m-K 14
29

Otherwise Unclassified Properties

Density, g/cm3 17
11

Common Calculations

Stiffness to Weight: Axial, points 3.6
0.86
Stiffness to Weight: Bending, points 9.3
7.7
Strength to Weight: Axial, points 3.0
0.66
Strength to Weight: Bending, points 4.2
1.8
Thermal Shock Resistance, points 8.7
3.8

Alloy Composition

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 to 0.0010
0 to 0.0020
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 81.5 to 82.5
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0 to 0.0020
96.2 to 98
Nickel (Ni), % 17.5 to 18.5
0 to 0.010
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 0
2.0 to 3.0
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.0010
0 to 0.0010