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Solder Alloy 401 vs. Solder Alloy 142

Both solder alloy 401 and solder alloy 142 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 48% of their average alloy composition in common. There are 23 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 401 and the bottom bar is solder alloy 142.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 50
33
Elongation at Break, % 21
37
Poisson's Ratio 0.36
0.4
Shear Modulus, GPa 19
12
Tensile Strength: Ultimate (UTS), MPa 29
43

Thermal Properties

Latent Heat of Fusion, J/g 60
42
Melting Completion (Liquidus), °C 230
210
Melting Onset (Solidus), °C 230
180
Specific Heat Capacity, J/kg-K 220
170
Thermal Conductivity, W/m-K 66
45
Thermal Expansion, µm/m-K 22
25

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 7.3
9.3
Embodied Carbon, kg CO2/kg material 15
9.4
Embodied Energy, MJ/kg 250
160
Embodied Water, L/kg 1200
890

Common Calculations

Stiffness to Weight: Axial, points 3.8
2.0
Stiffness to Weight: Bending, points 17
11
Strength to Weight: Axial, points 1.1
1.3
Strength to Weight: Bending, points 2.9
2.9
Thermal Diffusivity, mm2/s 40
28
Thermal Shock Resistance, points 1.9
3.7

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0010
Antimony (Sb), % 0 to 0.1
0 to 0.2
Arsenic (As), % 0 to 0.030
0 to 0.030
Bismuth (Bi), % 0 to 0.1
2.5 to 3.5
Cadmium (Cd), % 0 to 0.0020
0 to 0.0020
Copper (Cu), % 0.5 to 0.9
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
47.4 to 50
Nickel (Ni), % 0 to 0.010
0 to 0.010
Silver (Ag), % 0 to 0.1
0 to 0.1
Tin (Sn), % 98.5 to 99.5
47.5 to 48.5
Zinc (Zn), % 0 to 0.0010
0 to 0.0010