MakeItFrom.com
Menu (ESC)

Solder Alloy 702 vs. WE54A Magnesium

Solder alloy 702 belongs to the otherwise unclassified metals classification, while WE54A magnesium belongs to the magnesium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 702 and the bottom bar is WE54A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
44
Elongation at Break, % 21
4.3 to 5.6
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
17
Tensile Strength: Ultimate (UTS), MPa 53
270 to 300

Thermal Properties

Latent Heat of Fusion, J/g 61
330
Melting Completion (Liquidus), °C 220
640
Melting Onset (Solidus), °C 220
570
Specific Heat Capacity, J/kg-K 220
960
Thermal Conductivity, W/m-K 62
52
Thermal Expansion, µm/m-K 22
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
10
Electrical Conductivity: Equal Weight (Specific), % IACS 18
47

Otherwise Unclassified Properties

Density, g/cm3 7.4
1.9
Embodied Carbon, kg CO2/kg material 17
29
Embodied Energy, MJ/kg 290
260

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
62
Strength to Weight: Axial, points 2.0
39 to 43
Strength to Weight: Bending, points 4.2
49 to 51
Thermal Diffusivity, mm2/s 38
28
Thermal Shock Resistance, points 3.4
18 to 19

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), % 0 to 0.050
0 to 0.030
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.010
Lead (Pb), % 0 to 0.070
0
Lithium (Li), % 0
0 to 0.2
Magnesium (Mg), % 0
88.7 to 93.4
Manganese (Mn), % 0
0 to 0.030
Nickel (Ni), % 0 to 0.010
0 to 0.0050
Silicon (Si), % 0
0 to 0.010
Silver (Ag), % 2.8 to 3.2
0
Tin (Sn), % 96.3 to 97.2
0
Unspecified Rare Earths, % 0
1.5 to 4.0
Yttrium (Y), % 0
4.8 to 5.5
Zinc (Zn), % 0 to 0.0010
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3