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AWS BAg-20 vs. Solder Alloy 137

Both AWS BAg-20 and solder alloy 137 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 17 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 BAg-20 and the bottom bar is solder alloy 137.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 93
24
Poisson's Ratio 0.32
0.42
Shear Modulus, GPa 35
8.3
Tensile Strength: Ultimate (UTS), MPa 160
34

Thermal Properties

Latent Heat of Fusion, J/g 150
33
Melting Completion (Liquidus), °C 770
270
Melting Onset (Solidus), °C 680
190
Specific Heat Capacity, J/kg-K 340
150
Thermal Expansion, µm/m-K 21
27

Otherwise Unclassified Properties

Density, g/cm3 8.6
10
Embodied Carbon, kg CO2/kg material 30
6.3
Embodied Energy, MJ/kg 480
100

Common Calculations

Stiffness to Weight: Axial, points 6.0
1.3
Stiffness to Weight: Bending, points 17
9.2
Strength to Weight: Axial, points 5.1
0.9
Strength to Weight: Bending, points 7.6
2.2
Thermal Shock Resistance, points 5.9
3.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0.5 to 3.0
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 37 to 39
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0
75.9 to 80
Nickel (Ni), % 0
0 to 0.010
Silver (Ag), % 29 to 31
0 to 0.1
Tin (Sn), % 0
19.5 to 20.5
Zinc (Zn), % 30 to 34
0 to 0.0010
Residuals, % 0 to 0.15
0