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AWS BVAg-31 vs. Solder Alloy 703

Both AWS BVAg-31 and solder alloy 703 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 (9, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-31 and the bottom bar is solder alloy 703.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 90
51
Poisson's Ratio 0.36
0.36
Shear Modulus, GPa 33
19
Tensile Strength: Ultimate (UTS), MPa 180
57

Thermal Properties

Latent Heat of Fusion, J/g 150
61
Melting Completion (Liquidus), °C 850
220
Melting Onset (Solidus), °C 820
220
Specific Heat Capacity, J/kg-K 280
220
Thermal Expansion, µm/m-K 18
22

Otherwise Unclassified Properties

Density, g/cm3 10
7.4

Common Calculations

Stiffness to Weight: Axial, points 4.9
3.8
Stiffness to Weight: Bending, points 15
17
Strength to Weight: Axial, points 4.9
2.1
Strength to Weight: Bending, points 7.0
4.4
Thermal Shock Resistance, points 7.8
3.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0 to 0.0010
0 to 0.0020
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 31 to 33
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0 to 0.0020
0 to 0.070
Nickel (Ni), % 0
0 to 0.010
Palladium (Pd), % 8.0 to 12
0
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 57 to 59
3.3 to 3.7
Tin (Sn), % 0
95.8 to 96.7
Zinc (Zn), % 0 to 0.0010
0 to 0.0010