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Solder Alloy 134 vs. Solder Alloy 123

Both solder alloy 134 and solder alloy 123 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 63% of their average alloy composition in common. There are 24 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 134 and the bottom bar is solder alloy 123.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 31
18
Elongation at Break, % 31
45
Poisson's Ratio 0.4
0.44
Shear Modulus, GPa 11
6.2
Tensile Strength: Ultimate (UTS), MPa 38
28

Thermal Properties

Latent Heat of Fusion, J/g 41
26
Melting Completion (Liquidus), °C 230
310
Melting Onset (Solidus), °C 190
300
Specific Heat Capacity, J/kg-K 170
130
Thermal Conductivity, W/m-K 45
23
Thermal Expansion, µm/m-K 26
29

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
8.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.6
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 100
75
Density, g/cm3 9.6
11
Embodied Carbon, kg CO2/kg material 8.5
4.5
Embodied Energy, MJ/kg 140
74
Embodied Water, L/kg 820
500

Common Calculations

Stiffness to Weight: Axial, points 1.8
0.9
Stiffness to Weight: Bending, points 11
7.8
Strength to Weight: Axial, points 1.1
0.69
Strength to Weight: Bending, points 2.6
1.8
Thermal Diffusivity, mm2/s 28
16
Thermal Shock Resistance, points 3.4
3.8

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0010
Antimony (Sb), % 2.0 to 2.4
0 to 0.5
Arsenic (As), % 0 to 0.030
0 to 0.030
Bismuth (Bi), % 0 to 0.25
0 to 0.1
Cadmium (Cd), % 0 to 0.0050
0 to 0.0050
Copper (Cu), % 0 to 0.080
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), % 56.5 to 58.5
93.5 to 95.5
Nickel (Ni), % 0 to 0.010
0 to 0.010
Silver (Ag), % 0 to 0.1
0 to 0.1
Tin (Sn), % 39.5 to 40.5
4.5 to 5.5
Zinc (Zn), % 0 to 0.0010
0 to 0.0010