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Solder Alloy 201 vs. ISO-WD21150 Magnesium

Solder alloy 201 belongs to the otherwise unclassified metals classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, 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 201 and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 50
45
Elongation at Break, % 38
5.7 to 11
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 19
17
Tensile Strength: Ultimate (UTS), MPa 41
240 to 290

Thermal Properties

Latent Heat of Fusion, J/g 64
350
Melting Completion (Liquidus), °C 240
600
Melting Onset (Solidus), °C 240
550
Specific Heat Capacity, J/kg-K 220
990
Thermal Conductivity, W/m-K 28
100
Thermal Expansion, µm/m-K 21
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
19
Electrical Conductivity: Equal Weight (Specific), % IACS 15
100

Otherwise Unclassified Properties

Density, g/cm3 7.3
1.7
Embodied Carbon, kg CO2/kg material 15
23
Embodied Energy, MJ/kg 250
160
Embodied Water, L/kg 1320
980

Common Calculations

Stiffness to Weight: Axial, points 3.8
15
Stiffness to Weight: Bending, points 17
70
Strength to Weight: Axial, points 1.6
40 to 48
Strength to Weight: Bending, points 3.6
52 to 58
Thermal Diffusivity, mm2/s 17
60
Thermal Shock Resistance, points 2.7
15 to 17

Alloy Composition

Aluminum (Al), % 0 to 0.0010
2.4 to 3.6
Antimony (Sb), % 4.5 to 5.5
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 0.050
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.0050
Lead (Pb), % 0 to 0.070
0
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 0 to 0.010
0 to 0.0050
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 94 to 95.5
0
Zinc (Zn), % 0 to 0.0010
0.5 to 1.5
Residuals, % 0
0 to 0.3