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EN-MC65220 Magnesium vs. AWS E308Mo

EN-MC65220 magnesium belongs to the magnesium alloys classification, while AWS E308Mo belongs to the iron alloys. There are 23 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-MC65220 magnesium and the bottom bar is AWS E308Mo.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.2
40
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
78
Tensile Strength: Ultimate (UTS), MPa 270
620

Thermal Properties

Latent Heat of Fusion, J/g 340
290
Melting Completion (Liquidus), °C 610
1440
Melting Onset (Solidus), °C 550
1400
Specific Heat Capacity, J/kg-K 980
470
Thermal Conductivity, W/m-K 110
16
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 80
19
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 27
3.8
Embodied Energy, MJ/kg 210
53

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
25
Strength to Weight: Axial, points 40
22
Strength to Weight: Bending, points 49
20
Thermal Diffusivity, mm2/s 61
4.2
Thermal Shock Resistance, points 17
16

Alloy Composition


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Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 0.050 to 0.1
0 to 0.75
Iron (Fe), % 0 to 0.010
59.6 to 70.5
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0.5 to 2.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.0050
9.0 to 12
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 1.0
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0