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EN-MC95310 Magnesium vs. AWS E318

EN-MC95310 magnesium belongs to the magnesium alloys classification, while AWS E318 belongs to the iron alloys. There are 24 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-MC95310 magnesium and the bottom bar is AWS E318.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 2.2
29
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
78
Tensile Strength: Ultimate (UTS), MPa 280
620

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Melting Completion (Liquidus), °C 650
1440
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 25
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 50
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 34
23
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 29
4.4
Embodied Energy, MJ/kg 260
62
Embodied Water, L/kg 900
160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
25
Strength to Weight: Axial, points 40
22
Strength to Weight: Bending, points 49
20
Thermal Diffusivity, mm2/s 28
4.0
Thermal Shock Resistance, points 18
16

Alloy Composition


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Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17 to 20
Copper (Cu), % 0 to 0.030
0 to 0.75
Iron (Fe), % 0 to 0.010
57.6 to 69.5
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
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
11 to 14
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0