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EN-MC32110 Magnesium vs. Solder Alloy 702

EN-MC32110 magnesium belongs to the magnesium alloys classification, while solder alloy 702 belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (9, 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 EN-MC32110 magnesium and the bottom bar is solder alloy 702.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
51
Elongation at Break, % 2.2
21
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 19
19
Tensile Strength: Ultimate (UTS), MPa 220
53

Thermal Properties

Latent Heat of Fusion, J/g 330
61
Melting Completion (Liquidus), °C 600
220
Melting Onset (Solidus), °C 500
220
Specific Heat Capacity, J/kg-K 950
220
Thermal Conductivity, W/m-K 120
62
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
15
Electrical Conductivity: Equal Weight (Specific), % IACS 140
18

Otherwise Unclassified Properties

Density, g/cm3 2.1
7.4
Embodied Carbon, kg CO2/kg material 22
17
Embodied Energy, MJ/kg 150
290

Common Calculations

Stiffness to Weight: Axial, points 13
3.8
Stiffness to Weight: Bending, points 58
17
Strength to Weight: Axial, points 29
2.0
Strength to Weight: Bending, points 38
4.2
Thermal Diffusivity, mm2/s 58
38
Thermal Shock Resistance, points 12
3.4

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 2.4 to 3.0
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.050
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0
Nickel (Ni), % 0 to 0.010
0 to 0.010
Silicon (Si), % 0 to 0.2
0
Silver (Ag), % 0
2.8 to 3.2
Tin (Sn), % 0
96.3 to 97.2
Zinc (Zn), % 5.5 to 6.5
0 to 0.0010
Residuals, % 0 to 0.010
0