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ISO-WD43150 Magnesium vs. Solder Alloy 181

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while solder alloy 181 belongs to the otherwise unclassified metals. There are 22 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 ISO-WD43150 magnesium and the bottom bar is solder alloy 181.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
18
Elongation at Break, % 2.8
41
Poisson's Ratio 0.29
0.44
Shear Modulus, GPa 18
6.1
Tensile Strength: Ultimate (UTS), MPa 250
27

Thermal Properties

Latent Heat of Fusion, J/g 350
26
Melting Completion (Liquidus), °C 610
310
Melting Onset (Solidus), °C 590
300
Specific Heat Capacity, J/kg-K 990
130
Thermal Conductivity, W/m-K 140
24
Thermal Expansion, µm/m-K 27
29

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 170
7.4

Otherwise Unclassified Properties

Density, g/cm3 1.7
11
Embodied Carbon, kg CO2/kg material 24
6.2
Embodied Energy, MJ/kg 160
100

Common Calculations

Stiffness to Weight: Axial, points 15
0.86
Stiffness to Weight: Bending, points 71
7.7
Strength to Weight: Axial, points 41
0.66
Strength to Weight: Bending, points 52
1.8
Thermal Diffusivity, mm2/s 81
16
Thermal Shock Resistance, points 14
3.8

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 to 0.050
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0
96.2 to 98
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0
Nickel (Ni), % 0 to 0.010
0 to 0.010
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
2.0 to 3.0
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 0 to 0.3
0