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EN-MC21210 Magnesium vs. Solder Alloy 715

EN-MC21210 magnesium belongs to the magnesium alloys classification, while solder alloy 715 belongs to the otherwise unclassified metals. There are 23 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 EN-MC21210 magnesium and the bottom bar is solder alloy 715.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
16
Elastic (Young's, Tensile) Modulus, GPa 44
51
Elongation at Break, % 14
21
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 17
19
Tensile Strength: Ultimate (UTS), MPa 190
30

Thermal Properties

Latent Heat of Fusion, J/g 350
61
Melting Completion (Liquidus), °C 600
220
Melting Onset (Solidus), °C 570
220
Specific Heat Capacity, J/kg-K 1000
220
Thermal Conductivity, W/m-K 120
60
Thermal Expansion, µm/m-K 27
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
12
Electrical Conductivity: Equal Weight (Specific), % IACS 130
15

Otherwise Unclassified Properties

Density, g/cm3 1.6
7.3
Embodied Carbon, kg CO2/kg material 24
16
Embodied Energy, MJ/kg 160
270

Common Calculations

Stiffness to Weight: Axial, points 15
3.8
Stiffness to Weight: Bending, points 72
17
Strength to Weight: Axial, points 32
1.1
Strength to Weight: Bending, points 44
2.9
Thermal Diffusivity, mm2/s 76
37
Thermal Shock Resistance, points 11
1.9

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
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), % 0 to 0.010
0.5 to 0.9
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.0050
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0 to 0.010
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
0.8 to 1.2
Tin (Sn), % 0
97.4 to 98.7
Zinc (Zn), % 0 to 0.2
0 to 0.0010
Residuals, % 0 to 0.010
0