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Solder Alloy 713 vs. Solder Alloy 712

Both solder alloy 713 and solder alloy 712 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. Their average alloy composition is basically identical. There are 22 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 713 and the bottom bar is solder alloy 712.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
51
Elongation at Break, % 16
22
Poisson's Ratio 0.36
0.36
Shear Modulus, GPa 19
19
Tensile Strength: Ultimate (UTS), MPa 59
51

Thermal Properties

Latent Heat of Fusion, J/g 62
62
Melting Completion (Liquidus), °C 220
220
Melting Onset (Solidus), °C 220
220
Specific Heat Capacity, J/kg-K 220
220
Thermal Conductivity, W/m-K 60
58
Thermal Expansion, µm/m-K 22
22

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 7.4
7.4
Embodied Carbon, kg CO2/kg material 18
18
Embodied Energy, MJ/kg 300
300

Common Calculations

Stiffness to Weight: Axial, points 3.8
3.8
Stiffness to Weight: Bending, points 17
17
Strength to Weight: Axial, points 2.2
1.9
Strength to Weight: Bending, points 4.5
4.1
Thermal Diffusivity, mm2/s 36
35
Thermal Shock Resistance, points 3.7
3.3

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0010
Antimony (Sb), % 0 to 0.1
0 to 0.1
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), % 0.5 to 0.9
0.5 to 0.9
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
0 to 0.070
Nickel (Ni), % 0 to 0.010
0 to 0.010
Silver (Ag), % 3.6 to 4.0
3.3 to 3.7
Tin (Sn), % 94.6 to 95.9
94.9 to 96.2
Zinc (Zn), % 0 to 0.0010
0 to 0.0010