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Solder Alloy 133 vs. Solder Alloy 502

Both solder alloy 133 and solder alloy 502 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 (1, in this case) are not shown.

For each property being compared, the top bar is solder alloy 133 and the bottom bar is solder alloy 502.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 33
53
Elongation at Break, % 34
34
Poisson's Ratio 0.4
0.36
Shear Modulus, GPa 12
19
Tensile Strength: Ultimate (UTS), MPa 41
58

Thermal Properties

Latent Heat of Fusion, J/g 42
66
Melting Completion (Liquidus), °C 220
350
Melting Onset (Solidus), °C 180
220
Specific Heat Capacity, J/kg-K 180
230
Thermal Conductivity, W/m-K 47
47
Thermal Expansion, µm/m-K 25
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
12
Electrical Conductivity: Equal Weight (Specific), % IACS 10
15

Otherwise Unclassified Properties

Density, g/cm3 9.3
7.4
Embodied Carbon, kg CO2/kg material 9.4
15
Embodied Energy, MJ/kg 160
260

Common Calculations

Stiffness to Weight: Axial, points 2.0
4.0
Stiffness to Weight: Bending, points 12
17
Strength to Weight: Axial, points 1.2
2.2
Strength to Weight: Bending, points 2.9
4.5
Thermal Diffusivity, mm2/s 29
28
Thermal Shock Resistance, points 3.5
3.6

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0010
Antimony (Sb), % 0.2 to 0.5
0 to 0.1
Arsenic (As), % 0 to 0.030
0 to 0.030
Bismuth (Bi), % 0 to 0.1
0 to 0.080
Cadmium (Cd), % 0 to 0.0020
0 to 0.0020
Copper (Cu), % 0 to 0.080
3.5 to 4.5
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), % 48.5 to 50.3
0 to 0.070
Nickel (Ni), % 0 to 0.010
0 to 0.010
Silver (Ag), % 0 to 0.1
0.8 to 1.2
Tin (Sn), % 49.5 to 50.5
93.8 to 95.7
Zinc (Zn), % 0 to 0.0010
0 to 0.0010