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Solder Alloy 301 vs. AWS BVAu-8

Both solder alloy 301 and AWS BVAu-8 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 (12, 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 solder alloy 301 and the bottom bar is AWS BVAu-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 40
100
Poisson's Ratio 0.34
0.42
Shear Modulus, GPa 15
36
Tensile Strength: Ultimate (UTS), MPa 55
140

Thermal Properties

Latent Heat of Fusion, J/g 55
71
Melting Completion (Liquidus), °C 140
1240
Melting Onset (Solidus), °C 140
1200
Specific Heat Capacity, J/kg-K 160
140
Thermal Expansion, µm/m-K 14
14

Otherwise Unclassified Properties

Density, g/cm3 8.7
19

Common Calculations

Stiffness to Weight: Axial, points 2.5
3.0
Stiffness to Weight: Bending, points 13
8.3
Strength to Weight: Axial, points 1.8
2.1
Strength to Weight: Bending, points 3.7
3.2
Thermal Shock Resistance, points 7.2
7.1

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 56.5 to 59
0
Cadmium (Cd), % 0 to 0.0020
0 to 0.0010
Carbon (C), % 0
0 to 0.0050
Copper (Cu), % 0 to 0.050
0
Gold (Au), % 0 to 0.050
91 to 93
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0
Lead (Pb), % 0 to 0.070
0 to 0.0020
Nickel (Ni), % 0 to 0.010
0
Palladium (Pd), % 0
7.0 to 9.0
Phosphorus (P), % 0
0 to 0.0020
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 41 to 43
0
Zinc (Zn), % 0 to 0.0010
0 to 0.0010