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Solder Alloy 703 vs. Solder Alloy 133

Both solder alloy 703 and solder alloy 133 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 50% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is solder alloy 703 and the bottom bar is solder alloy 133.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
33
Elongation at Break, % 35
34
Poisson's Ratio 0.36
0.4
Shear Modulus, GPa 19
12
Tensile Strength: Ultimate (UTS), MPa 57
41

Thermal Properties

Latent Heat of Fusion, J/g 61
42
Melting Completion (Liquidus), °C 220
220
Melting Onset (Solidus), °C 220
180
Specific Heat Capacity, J/kg-K 220
180
Thermal Conductivity, W/m-K 55
47
Thermal Expansion, µm/m-K 22
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
11
Electrical Conductivity: Equal Weight (Specific), % IACS 17
10

Otherwise Unclassified Properties

Density, g/cm3 7.4
9.3
Embodied Carbon, kg CO2/kg material 18
9.4
Embodied Energy, MJ/kg 300
160

Common Calculations

Stiffness to Weight: Axial, points 3.8
2.0
Stiffness to Weight: Bending, points 17
12
Strength to Weight: Axial, points 2.1
1.2
Strength to Weight: Bending, points 4.4
2.9
Thermal Diffusivity, mm2/s 33
29
Thermal Shock Resistance, points 3.7
3.5

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0010
Antimony (Sb), % 0 to 0.1
0.2 to 0.5
Arsenic (As), % 0 to 0.030
0 to 0.030
Bismuth (Bi), % 0 to 0.1
0 to 0.1
Cadmium (Cd), % 0 to 0.0020
0 to 0.0020
Copper (Cu), % 0 to 0.050
0 to 0.080
Gold (Au), % 0 to 0.050
0 to 0.050
Indium (In), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0 to 0.020
0 to 0.020
Lead (Pb), % 0 to 0.070
48.5 to 50.3
Nickel (Ni), % 0 to 0.010
0 to 0.010
Silver (Ag), % 3.3 to 3.7
0 to 0.1
Tin (Sn), % 95.8 to 96.7
49.5 to 50.5
Zinc (Zn), % 0 to 0.0010
0 to 0.0010