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Solder Alloy 704 vs. Solder Alloy 162

Both solder alloy 704 and solder alloy 162 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 704 and the bottom bar is solder alloy 162.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
35
Elongation at Break, % 30
36
Poisson's Ratio 0.36
0.4
Shear Modulus, GPa 19
12
Tensile Strength: Ultimate (UTS), MPa 55
41

Thermal Properties

Latent Heat of Fusion, J/g 62
44
Melting Completion (Liquidus), °C 240
220
Melting Onset (Solidus), °C 220
180
Specific Heat Capacity, J/kg-K 220
180
Thermal Conductivity, W/m-K 50
47
Thermal Expansion, µm/m-K 22
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
11
Electrical Conductivity: Equal Weight (Specific), % IACS 15
10

Otherwise Unclassified Properties

Density, g/cm3 7.5
9.3
Embodied Carbon, kg CO2/kg material 19
9.4
Embodied Energy, MJ/kg 320
160

Common Calculations

Stiffness to Weight: Axial, points 3.8
2.1
Stiffness to Weight: Bending, points 17
12
Strength to Weight: Axial, points 2.1
1.2
Strength to Weight: Bending, points 4.3
2.8
Thermal Diffusivity, mm2/s 30
28
Thermal Shock Resistance, points 3.5
3.3

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
0 to 0.1
Cadmium (Cd), % 0 to 0.0020
0 to 0.0020
Copper (Cu), % 0 to 0.050
1.2 to 1.6
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
47.3 to 49.3
Nickel (Ni), % 0 to 0.010
0 to 0.010
Silver (Ag), % 4.8 to 5.2
0 to 0.1
Tin (Sn), % 94.3 to 95.2
49.5 to 50.5
Zinc (Zn), % 0 to 0.0010
0 to 0.0010