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Solder Alloy 171 vs. Class 3 Tungsten

Both solder alloy 171 and class 3 tungsten are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 20 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 171 and the bottom bar is class 3 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
270
Elongation at Break, % 45
3.4
Poisson's Ratio 0.39
0.28
Shear Modulus, GPa 14
100
Tensile Strength: Ultimate (UTS), MPa 48
830

Thermal Properties

Latent Heat of Fusion, J/g 47
170
Specific Heat Capacity, J/kg-K 190
120
Thermal Conductivity, W/m-K 50
30
Thermal Expansion, µm/m-K 24
4.5

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
15
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.5

Otherwise Unclassified Properties

Density, g/cm3 8.8
15
Embodied Carbon, kg CO2/kg material 13
23
Embodied Energy, MJ/kg 210
360

Common Calculations

Stiffness to Weight: Axial, points 2.4
9.6
Stiffness to Weight: Bending, points 13
14
Strength to Weight: Axial, points 1.5
15
Strength to Weight: Bending, points 3.3
13
Thermal Diffusivity, mm2/s 30
15
Thermal Shock Resistance, points 3.7
49

Alloy Composition


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Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.2
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.080
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0
Lead (Pb), % 34.7 to 36.7
0
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 1.8 to 2.2
0
Tin (Sn), % 61.5 to 62.5
0
Tungsten (W), % 0
95
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
5.0