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AWS BVAu-2 vs. Solder Alloy 711

Both AWS BVAu-2 and solder alloy 711 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-2 and the bottom bar is solder alloy 711.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
51
Poisson's Ratio 0.4
0.36
Shear Modulus, GPa 36
19
Tensile Strength: Ultimate (UTS), MPa 150
49

Thermal Properties

Latent Heat of Fusion, J/g 92
61
Melting Completion (Liquidus), °C 890
220
Melting Onset (Solidus), °C 890
220
Specific Heat Capacity, J/kg-K 180
220
Thermal Expansion, µm/m-K 15
22

Otherwise Unclassified Properties

Density, g/cm3 17
7.4

Common Calculations

Stiffness to Weight: Axial, points 3.3
3.8
Stiffness to Weight: Bending, points 9.1
17
Strength to Weight: Axial, points 2.4
1.8
Strength to Weight: Bending, points 3.6
4.0
Thermal Shock Resistance, points 7.1
3.1

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), % 19.5 to 20.5
0.3 to 0.7
Gold (Au), % 79.5 to 80.5
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0 to 0.0020
0 to 0.070
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 0
2.8 to 3.2
Tin (Sn), % 0
95.6 to 96.9
Zinc (Zn), % 0 to 0.0010
0 to 0.0010