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Solder Alloy 711 vs. Solder Alloy 135

Both solder alloy 711 and solder alloy 135 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 22 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is solder alloy 711 and the bottom bar is solder alloy 135.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
27
Elongation at Break, % 19
20
Poisson's Ratio 0.36
0.41
Shear Modulus, GPa 19
9.5
Tensile Strength: Ultimate (UTS), MPa 49
35

Thermal Properties

Latent Heat of Fusion, J/g 61
36
Melting Completion (Liquidus), °C 220
250
Melting Onset (Solidus), °C 220
190
Specific Heat Capacity, J/kg-K 220
160
Thermal Conductivity, W/m-K 58
42
Thermal Expansion, µm/m-K 22
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
9.5
Electrical Conductivity: Equal Weight (Specific), % IACS 16
8.5

Otherwise Unclassified Properties

Density, g/cm3 7.4
10
Embodied Carbon, kg CO2/kg material 17
7.3
Embodied Energy, MJ/kg 290
120

Common Calculations

Stiffness to Weight: Axial, points 3.8
1.5
Stiffness to Weight: Bending, points 17
9.9
Strength to Weight: Axial, points 1.8
1.0
Strength to Weight: Bending, points 4.0
2.4
Thermal Diffusivity, mm2/s 35
27
Thermal Shock Resistance, points 3.1
3.5

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0010
Antimony (Sb), % 0 to 0.1
0.5 to 1.8
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), % 0.3 to 0.7
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
67.1 to 70
Nickel (Ni), % 0 to 0.010
0 to 0.010
Silver (Ag), % 2.8 to 3.2
0 to 0.1
Tin (Sn), % 95.6 to 96.9
29.5 to 30.5
Zinc (Zn), % 0 to 0.0010
0 to 0.0010