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Solder Alloy 201 vs. AWS BVAu-4

Both solder alloy 201 and AWS BVAu-4 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 (10, 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 201 and the bottom bar is AWS BVAu-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 50
110
Poisson's Ratio 0.35
0.4
Shear Modulus, GPa 19
41
Tensile Strength: Ultimate (UTS), MPa 41
190

Thermal Properties

Latent Heat of Fusion, J/g 64
100
Melting Completion (Liquidus), °C 240
950
Melting Onset (Solidus), °C 240
950
Specific Heat Capacity, J/kg-K 220
190
Thermal Expansion, µm/m-K 21
14

Otherwise Unclassified Properties

Density, g/cm3 7.3
17

Common Calculations

Stiffness to Weight: Axial, points 3.8
3.6
Stiffness to Weight: Bending, points 17
9.3
Strength to Weight: Axial, points 1.6
3.0
Strength to Weight: Bending, points 3.6
4.2
Thermal Shock Resistance, points 2.7
8.7

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 4.5 to 5.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
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
81.5 to 82.5
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
17.5 to 18.5
Phosphorus (P), % 0
0 to 0.0020
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 94 to 95.5
0
Zinc (Zn), % 0 to 0.0010
0 to 0.0010