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Solder Alloy 703 vs. AWS BVAg-8

Both solder alloy 703 and AWS BVAg-8 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 solder alloy 703 and the bottom bar is AWS BVAg-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
84
Poisson's Ratio 0.36
0.36
Shear Modulus, GPa 19
31
Tensile Strength: Ultimate (UTS), MPa 57
170

Thermal Properties

Latent Heat of Fusion, J/g 61
140
Melting Completion (Liquidus), °C 220
780
Melting Onset (Solidus), °C 220
780
Specific Heat Capacity, J/kg-K 220
280
Thermal Expansion, µm/m-K 22
19

Otherwise Unclassified Properties

Density, g/cm3 7.4
10

Common Calculations

Stiffness to Weight: Axial, points 3.8
4.6
Stiffness to Weight: Bending, points 17
14
Strength to Weight: Axial, points 2.1
4.7
Strength to Weight: Bending, points 4.4
6.8
Thermal Shock Resistance, points 3.7
7.6

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), % 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
27 to 29
Gold (Au), % 0 to 0.050
0
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
0
Phosphorus (P), % 0
0 to 0.0020
Silver (Ag), % 3.3 to 3.7
71 to 73
Tin (Sn), % 95.8 to 96.7
0
Zinc (Zn), % 0 to 0.0010
0 to 0.0010