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Solder Alloy 702 vs. Grade 7 Babbitt Metal

Both solder alloy 702 and grade 7 Babbitt Metal are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 13 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is solder alloy 702 and the bottom bar is grade 7 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
26
Poisson's Ratio 0.36
0.4
Shear Modulus, GPa 19
9.1

Thermal Properties

Latent Heat of Fusion, J/g 61
48
Melting Completion (Liquidus), °C 220
270
Melting Onset (Solidus), °C 220
240
Specific Heat Capacity, J/kg-K 220
150
Thermal Expansion, µm/m-K 22
26

Otherwise Unclassified Properties

Density, g/cm3 7.4
10
Embodied Carbon, kg CO2/kg material 17
4.4
Embodied Energy, MJ/kg 290
62

Common Calculations

Stiffness to Weight: Axial, points 3.8
1.4
Stiffness to Weight: Bending, points 17
9.6

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0050
Antimony (Sb), % 0 to 0.1
14 to 16
Arsenic (As), % 0 to 0.030
0.3 to 0.6
Bismuth (Bi), % 0 to 0.1
0 to 0.1
Cadmium (Cd), % 0 to 0.0020
0 to 0.050
Copper (Cu), % 0 to 0.050
0 to 0.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.1
Lead (Pb), % 0 to 0.070
71.9 to 76.4
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 2.8 to 3.2
0
Tin (Sn), % 96.3 to 97.2
9.3 to 10.7
Zinc (Zn), % 0 to 0.0010
0 to 0.0050