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EN-MC21210 Magnesium vs. AWS E330

EN-MC21210 magnesium belongs to the magnesium alloys classification, while AWS E330 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-MC21210 magnesium and the bottom bar is AWS E330.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 14
29
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
76
Tensile Strength: Ultimate (UTS), MPa 190
580

Thermal Properties

Latent Heat of Fusion, J/g 350
300
Melting Completion (Liquidus), °C 600
1400
Melting Onset (Solidus), °C 570
1350
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 120
12
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 130
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.6
8.1
Embodied Carbon, kg CO2/kg material 24
5.4
Embodied Energy, MJ/kg 160
75
Embodied Water, L/kg 980
180

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 32
20
Strength to Weight: Bending, points 44
19
Thermal Diffusivity, mm2/s 76
3.2
Thermal Shock Resistance, points 11
16

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Carbon (C), % 0
0.18 to 0.25
Chromium (Cr), % 0
14 to 17
Copper (Cu), % 0 to 0.010
0 to 0.75
Iron (Fe), % 0 to 0.0050
40.7 to 51.8
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
1.0 to 2.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0 to 0.0020
33 to 37
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0