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Class 4 Tungsten vs. Solder Alloy 161

Both class 4 tungsten and solder alloy 161 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 21 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is class 4 tungsten and the bottom bar is solder alloy 161.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
38
Elongation at Break, % 2.3
44
Poisson's Ratio 0.28
0.39
Shear Modulus, GPa 110
14
Tensile Strength: Ultimate (UTS), MPa 790
53

Thermal Properties

Latent Heat of Fusion, J/g 170
48
Specific Heat Capacity, J/kg-K 130
190
Thermal Conductivity, W/m-K 30
49
Thermal Expansion, µm/m-K 4.5
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
11
Electrical Conductivity: Equal Weight (Specific), % IACS 9.7
11

Otherwise Unclassified Properties

Density, g/cm3 16
8.9
Embodied Carbon, kg CO2/kg material 24
11
Embodied Energy, MJ/kg 360
180
Embodied Water, L/kg 150
910

Common Calculations

Stiffness to Weight: Axial, points 9.6
2.4
Stiffness to Weight: Bending, points 14
13
Strength to Weight: Axial, points 14
1.7
Strength to Weight: Bending, points 12
3.5
Thermal Diffusivity, mm2/s 15
29
Thermal Shock Resistance, points 46
4.1

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 0
1.2 to 1.6
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0
37.3 to 39.3
Nickel (Ni), % 0
0 to 0.010
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
59.5 to 60.5
Tungsten (W), % 97
0
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 3.0
0