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Solder Alloy 402 vs. ISO-WD32260 Magnesium

Solder alloy 402 belongs to the otherwise unclassified metals classification, while ISO-WD32260 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 402 and the bottom bar is ISO-WD32260 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 52
46
Elongation at Break, % 20
4.5 to 6.0
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
18
Tensile Strength: Ultimate (UTS), MPa 57
330 to 340

Thermal Properties

Latent Heat of Fusion, J/g 64
330
Melting Completion (Liquidus), °C 310
600
Melting Onset (Solidus), °C 230
520
Specific Heat Capacity, J/kg-K 230
970
Thermal Conductivity, W/m-K 61
110
Thermal Expansion, µm/m-K 22
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
28
Electrical Conductivity: Equal Weight (Specific), % IACS 18
140

Otherwise Unclassified Properties

Density, g/cm3 7.3
1.9
Embodied Carbon, kg CO2/kg material 15
23
Embodied Energy, MJ/kg 250
160
Embodied Water, L/kg 1180
940

Common Calculations

Stiffness to Weight: Axial, points 3.9
13
Stiffness to Weight: Bending, points 17
63
Strength to Weight: Axial, points 2.2
48 to 51
Strength to Weight: Bending, points 4.5
56 to 58
Thermal Diffusivity, mm2/s 37
63
Thermal Shock Resistance, points 3.6
19 to 20

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), % 2.5 to 3.5
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0
Lead (Pb), % 0 to 0.070
0
Magnesium (Mg), % 0
92.7 to 94.8
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 95.9 to 97.5
0
Zinc (Zn), % 0 to 0.0010
4.8 to 6.2
Zirconium (Zr), % 0
0.45 to 0.8
Residuals, % 0
0 to 0.3