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AS41B Magnesium vs. Solder Alloy 503

AS41B magnesium belongs to the magnesium alloys classification, while solder alloy 503 belongs to the otherwise unclassified metals. There are 22 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 AS41B magnesium and the bottom bar is solder alloy 503.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
54
Elongation at Break, % 6.0
30
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 18
20
Tensile Strength: Ultimate (UTS), MPa 210
57

Thermal Properties

Latent Heat of Fusion, J/g 370
69
Melting Completion (Liquidus), °C 620
380
Melting Onset (Solidus), °C 570
220
Specific Heat Capacity, J/kg-K 1000
230
Thermal Conductivity, W/m-K 68
61
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
14
Electrical Conductivity: Equal Weight (Specific), % IACS 92
17

Otherwise Unclassified Properties

Density, g/cm3 1.7
7.5
Embodied Carbon, kg CO2/kg material 23
16
Embodied Energy, MJ/kg 160
270

Common Calculations

Stiffness to Weight: Axial, points 15
4.1
Stiffness to Weight: Bending, points 72
17
Strength to Weight: Axial, points 35
2.1
Strength to Weight: Bending, points 47
4.4
Thermal Diffusivity, mm2/s 41
35
Thermal Shock Resistance, points 13
3.5

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.080
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 0 to 0.020
5.5 to 6.5
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.0035
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0 to 0.010
Silicon (Si), % 0.5 to 1.5
0
Silver (Ag), % 0
1.8 to 2.2
Tin (Sn), % 0
90.8 to 92.7
Zinc (Zn), % 0 to 0.12
0 to 0.0010