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Solder Alloy 301 vs. Solder Alloy 711

Both solder alloy 301 and solder alloy 711 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 42% of their average alloy composition in common. There are 23 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 301 and the bottom bar is solder alloy 711.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 23
15
Elastic (Young's, Tensile) Modulus, GPa 40
51
Elongation at Break, % 51
19
Poisson's Ratio 0.34
0.36
Shear Modulus, GPa 15
19
Tensile Strength: Ultimate (UTS), MPa 55
49

Thermal Properties

Latent Heat of Fusion, J/g 55
61
Melting Completion (Liquidus), °C 140
220
Melting Onset (Solidus), °C 140
220
Specific Heat Capacity, J/kg-K 160
220
Thermal Conductivity, W/m-K 19
58
Thermal Expansion, µm/m-K 14
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
13
Electrical Conductivity: Equal Weight (Specific), % IACS 4.9
16

Otherwise Unclassified Properties

Density, g/cm3 8.7
7.4
Embodied Carbon, kg CO2/kg material 13
17
Embodied Energy, MJ/kg 210
290

Common Calculations

Stiffness to Weight: Axial, points 2.5
3.8
Stiffness to Weight: Bending, points 13
17
Strength to Weight: Axial, points 1.8
1.8
Strength to Weight: Bending, points 3.7
4.0
Thermal Diffusivity, mm2/s 13
35
Thermal Shock Resistance, points 7.2
3.1

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), % 56.5 to 59
0 to 0.1
Cadmium (Cd), % 0 to 0.0020
0 to 0.0020
Copper (Cu), % 0 to 0.050
0.3 to 0.7
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), % 0 to 0.1
2.8 to 3.2
Tin (Sn), % 41 to 43
95.6 to 96.9
Zinc (Zn), % 0 to 0.0010
0 to 0.0010