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Solder Alloy 171 vs. WE54A Magnesium

Solder alloy 171 belongs to the otherwise unclassified metals classification, while WE54A magnesium belongs to the magnesium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is solder alloy 171 and the bottom bar is WE54A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 16
85
Elastic (Young's, Tensile) Modulus, GPa 38
44
Elongation at Break, % 45
4.3 to 5.6
Poisson's Ratio 0.39
0.29
Shear Modulus, GPa 14
17
Tensile Strength: Ultimate (UTS), MPa 48
270 to 300

Thermal Properties

Latent Heat of Fusion, J/g 47
330
Melting Completion (Liquidus), °C 180
640
Melting Onset (Solidus), °C 180
570
Specific Heat Capacity, J/kg-K 190
960
Thermal Conductivity, W/m-K 50
52
Thermal Expansion, µm/m-K 24
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
10
Electrical Conductivity: Equal Weight (Specific), % IACS 12
47

Otherwise Unclassified Properties

Density, g/cm3 8.8
1.9
Embodied Carbon, kg CO2/kg material 13
29
Embodied Energy, MJ/kg 210
260

Common Calculations

Stiffness to Weight: Axial, points 2.4
13
Stiffness to Weight: Bending, points 13
62
Strength to Weight: Axial, points 1.5
39 to 43
Strength to Weight: Bending, points 3.3
49 to 51
Thermal Diffusivity, mm2/s 30
28
Thermal Shock Resistance, points 3.7
18 to 19

Alloy Composition

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 to 0.030
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.010
Lead (Pb), % 34.7 to 36.7
0
Lithium (Li), % 0
0 to 0.2
Magnesium (Mg), % 0
88.7 to 93.4
Manganese (Mn), % 0
0 to 0.030
Nickel (Ni), % 0 to 0.010
0 to 0.0050
Silicon (Si), % 0
0 to 0.010
Silver (Ag), % 1.8 to 2.2
0
Tin (Sn), % 61.5 to 62.5
0
Unspecified Rare Earths, % 0
1.5 to 4.0
Yttrium (Y), % 0
4.8 to 5.5
Zinc (Zn), % 0 to 0.0010
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3