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Solder Alloy 301 vs. AWS BAu-4

Both solder alloy 301 and AWS BAu-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 (12, in this case) are not shown.

For each property being compared, the top bar is solder alloy 301 and the bottom bar is AWS BAu-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 40
110
Poisson's Ratio 0.34
0.4
Shear Modulus, GPa 15
41
Tensile Strength: Ultimate (UTS), MPa 55
200

Thermal Properties

Latent Heat of Fusion, J/g 55
100
Melting Completion (Liquidus), °C 140
950
Melting Onset (Solidus), °C 140
950
Specific Heat Capacity, J/kg-K 160
190
Thermal Expansion, µm/m-K 14
14

Otherwise Unclassified Properties

Density, g/cm3 8.7
17

Common Calculations

Stiffness to Weight: Axial, points 2.5
3.6
Stiffness to Weight: Bending, points 13
9.3
Strength to Weight: Axial, points 1.8
3.2
Strength to Weight: Bending, points 3.7
4.4
Thermal Shock Resistance, points 7.2
9.2

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
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
Nickel (Ni), % 0 to 0.010
17.4 to 18.5
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 41 to 43
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.15