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Solder Alloy 704 vs. Solder Alloy 116

Both solder alloy 704 and solder alloy 116 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 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 116.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
12
Elastic (Young's, Tensile) Modulus, GPa 51
26
Elongation at Break, % 30
18
Poisson's Ratio 0.36
0.42
Shear Modulus, GPa 19
9.3
Tensile Strength: Ultimate (UTS), MPa 55
34

Thermal Properties

Latent Heat of Fusion, J/g 62
34
Melting Completion (Liquidus), °C 240
260
Melting Onset (Solidus), °C 220
180
Specific Heat Capacity, J/kg-K 220
160
Thermal Conductivity, W/m-K 50
41
Thermal Expansion, µm/m-K 22
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 15
8.3

Otherwise Unclassified Properties

Density, g/cm3 7.5
10
Embodied Carbon, kg CO2/kg material 19
7.2
Embodied Energy, MJ/kg 320
120

Common Calculations

Stiffness to Weight: Axial, points 3.8
1.5
Stiffness to Weight: Bending, points 17
9.8
Strength to Weight: Axial, points 2.1
0.94
Strength to Weight: Bending, points 4.3
2.3
Thermal Diffusivity, mm2/s 30
26
Thermal Shock Resistance, points 3.5
3.4

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0010
Antimony (Sb), % 0 to 0.1
0 to 0.5
Arsenic (As), % 0 to 0.030
0 to 0.030
Bismuth (Bi), % 0 to 0.1
0 to 0.25
Cadmium (Cd), % 0 to 0.0020
0 to 0.0050
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
68.4 to 70.5
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
29.5 to 30.5
Zinc (Zn), % 0 to 0.0010
0 to 0.0010