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AWS BVAg-8 vs. Solder Alloy 702

Both AWS BVAg-8 and solder alloy 702 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 (8, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-8 and the bottom bar is solder alloy 702.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 84
51
Poisson's Ratio 0.36
0.36
Shear Modulus, GPa 31
19
Tensile Strength: Ultimate (UTS), MPa 170
53

Thermal Properties

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

Otherwise Unclassified Properties

Density, g/cm3 10
7.4

Common Calculations

Stiffness to Weight: Axial, points 4.6
3.8
Stiffness to Weight: Bending, points 14
17
Strength to Weight: Axial, points 4.7
2.0
Strength to Weight: Bending, points 6.8
4.2
Thermal Shock Resistance, points 7.6
3.4

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), % 27 to 29
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
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 71 to 73
2.8 to 3.2
Tin (Sn), % 0
96.3 to 97.2
Zinc (Zn), % 0 to 0.0010
0 to 0.0010