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ISO-WD32250 Magnesium vs. Solder Alloy 135

ISO-WD32250 magnesium belongs to the magnesium alloys classification, while solder alloy 135 belongs to the otherwise unclassified metals. There are 24 material properties with values for both materials. Properties with values for just one material (6, 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-WD32250 magnesium and the bottom bar is solder alloy 135.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
27
Elongation at Break, % 4.5 to 8.6
20
Poisson's Ratio 0.29
0.41
Shear Modulus, GPa 17
9.5
Tensile Strength: Ultimate (UTS), MPa 310 to 330
35

Thermal Properties

Latent Heat of Fusion, J/g 340
36
Melting Completion (Liquidus), °C 600
250
Melting Onset (Solidus), °C 550
190
Specific Heat Capacity, J/kg-K 980
160
Thermal Conductivity, W/m-K 130
42
Thermal Expansion, µm/m-K 26
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
9.5
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
90
Density, g/cm3 1.8
10
Embodied Carbon, kg CO2/kg material 24
7.3
Embodied Energy, MJ/kg 160
120
Embodied Water, L/kg 950
720

Common Calculations

Stiffness to Weight: Axial, points 14
1.5
Stiffness to Weight: Bending, points 67
9.9
Strength to Weight: Axial, points 49 to 51
1.0
Strength to Weight: Bending, points 58 to 60
2.4
Thermal Diffusivity, mm2/s 72
27
Thermal Shock Resistance, points 19 to 20
3.5

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0.5 to 1.8
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 0
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
67.1 to 70
Magnesium (Mg), % 94.9 to 97.1
0
Nickel (Ni), % 0
0 to 0.010
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
29.5 to 30.5
Zinc (Zn), % 2.5 to 4.0
0 to 0.0010
Zirconium (Zr), % 0.45 to 0.8
0
Residuals, % 0 to 0.3
0