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AWS E16-8-2 vs. WE54A Magnesium

AWS E16-8-2 belongs to the iron alloys classification, while WE54A magnesium belongs to the magnesium alloys. There are 24 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 AWS E16-8-2 and the bottom bar is WE54A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 40
4.3 to 5.6
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
17
Tensile Strength: Ultimate (UTS), MPa 620
270 to 300

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
570
Specific Heat Capacity, J/kg-K 470
960
Thermal Conductivity, W/m-K 16
52
Thermal Expansion, µm/m-K 14
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
47

Otherwise Unclassified Properties

Base Metal Price, % relative 15
34
Density, g/cm3 7.9
1.9
Embodied Carbon, kg CO2/kg material 3.2
29
Embodied Energy, MJ/kg 45
260
Embodied Water, L/kg 140
900

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
62
Strength to Weight: Axial, points 22
39 to 43
Strength to Weight: Bending, points 20
49 to 51
Thermal Diffusivity, mm2/s 4.2
28
Thermal Shock Resistance, points 16
18 to 19

Alloy Composition

Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 14.5 to 16.5
0
Copper (Cu), % 0 to 0.75
0 to 0.030
Iron (Fe), % 68 to 76.5
0 to 0.010
Lithium (Li), % 0
0 to 0.2
Magnesium (Mg), % 0
88.7 to 93.4
Manganese (Mn), % 0.5 to 2.5
0 to 0.030
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 7.5 to 9.5
0 to 0.0050
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0 to 0.010
Sulfur (S), % 0 to 0.030
0
Unspecified Rare Earths, % 0
1.5 to 4.0
Yttrium (Y), % 0
4.8 to 5.5
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3