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AWS BVAg-29 vs. Solder Alloy 121

Both AWS BVAg-29 and solder alloy 121 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 (11, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-29 and the bottom bar is solder alloy 121.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
21
Poisson's Ratio 0.37
0.43
Shear Modulus, GPa 27
7.5
Tensile Strength: Ultimate (UTS), MPa 180
32

Thermal Properties

Latent Heat of Fusion, J/g 120
29
Melting Completion (Liquidus), °C 710
290
Melting Onset (Solidus), °C 620
230
Specific Heat Capacity, J/kg-K 270
140
Thermal Expansion, µm/m-K 20
28

Otherwise Unclassified Properties

Density, g/cm3 9.7
11

Common Calculations

Stiffness to Weight: Axial, points 4.2
1.1
Stiffness to Weight: Bending, points 14
8.6
Strength to Weight: Axial, points 5.2
0.84
Strength to Weight: Bending, points 7.3
2.1
Thermal Shock Resistance, points 8.8
3.9

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0 to 0.0010
0 to 0.0050
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 22.5 to 25.5
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 14 to 15
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0 to 0.0020
83.4 to 85.5
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 60.5 to 62.5
0 to 0.1
Tin (Sn), % 0
14.5 to 15.5
Zinc (Zn), % 0 to 0.0010
0 to 0.0010