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Solder Alloy 801 vs. WE54A Magnesium

Solder alloy 801 belongs to the otherwise unclassified metals classification, while WE54A magnesium belongs to the magnesium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 801 and the bottom bar is WE54A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 22
85
Elastic (Young's, Tensile) Modulus, GPa 53
44
Elongation at Break, % 33
4.3 to 5.6
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 20
17
Tensile Strength: Ultimate (UTS), MPa 55
270 to 300

Thermal Properties

Latent Heat of Fusion, J/g 64
330
Melting Completion (Liquidus), °C 200
640
Melting Onset (Solidus), °C 200
570
Specific Heat Capacity, J/kg-K 240
960
Thermal Conductivity, W/m-K 61
52
Thermal Expansion, µm/m-K 22
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
10
Electrical Conductivity: Equal Weight (Specific), % IACS 19
47

Otherwise Unclassified Properties

Density, g/cm3 7.2
1.9
Embodied Carbon, kg CO2/kg material 14
29
Embodied Energy, MJ/kg 240
260
Embodied Water, L/kg 1140
900

Common Calculations

Stiffness to Weight: Axial, points 4.1
13
Stiffness to Weight: Bending, points 17
62
Strength to Weight: Axial, points 2.1
39 to 43
Strength to Weight: Bending, points 4.4
49 to 51
Thermal Diffusivity, mm2/s 36
28
Thermal Shock Resistance, points 3.3
18 to 19

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
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 0.050
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), % 0 to 0.070
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), % 0 to 0.1
0
Tin (Sn), % 89.9 to 91.5
0
Unspecified Rare Earths, % 0
1.5 to 4.0
Yttrium (Y), % 0
4.8 to 5.5
Zinc (Zn), % 8.5 to 9.5
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3