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Solder Alloy 801 vs. Solder Alloy 151

Both solder alloy 801 and solder alloy 151 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 23 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 801 and the bottom bar is solder alloy 151.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 53
39
Elongation at Break, % 33
37
Poisson's Ratio 0.35
0.37
Shear Modulus, GPa 20
14
Tensile Strength: Ultimate (UTS), MPa 55
46

Thermal Properties

Latent Heat of Fusion, J/g 64
47
Melting Completion (Liquidus), °C 200
150
Melting Onset (Solidus), °C 200
150
Specific Heat Capacity, J/kg-K 240
190
Thermal Conductivity, W/m-K 61
44
Thermal Expansion, µm/m-K 22
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
10
Electrical Conductivity: Equal Weight (Specific), % IACS 19
10

Otherwise Unclassified Properties

Density, g/cm3 7.2
8.8
Embodied Carbon, kg CO2/kg material 14
9.2
Embodied Energy, MJ/kg 240
160
Embodied Water, L/kg 1140
920

Common Calculations

Stiffness to Weight: Axial, points 4.1
2.5
Stiffness to Weight: Bending, points 17
13
Strength to Weight: Axial, points 2.1
1.4
Strength to Weight: Bending, points 4.4
3.2
Thermal Diffusivity, mm2/s 36
26
Thermal Shock Resistance, points 3.3
3.2

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
17.5 to 18.5
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
30.3 to 33
Nickel (Ni), % 0 to 0.010
0 to 0.010
Silver (Ag), % 0 to 0.1
0 to 0.1
Tin (Sn), % 89.9 to 91.5
49.5 to 50.5
Zinc (Zn), % 8.5 to 9.5
0 to 0.0010