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AWS E349 vs. EZ33A Magnesium

AWS E349 belongs to the iron alloys classification, while EZ33A magnesium belongs to the magnesium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, 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 E349 and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 29
2.6
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
17
Tensile Strength: Ultimate (UTS), MPa 770
150

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Melting Completion (Liquidus), °C 1470
640
Melting Onset (Solidus), °C 1420
570
Specific Heat Capacity, J/kg-K 470
970
Thermal Conductivity, W/m-K 15
100
Thermal Expansion, µm/m-K 14
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
24
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
110

Otherwise Unclassified Properties

Base Metal Price, % relative 25
25
Density, g/cm3 7.9
1.9
Embodied Carbon, kg CO2/kg material 4.9
25
Embodied Energy, MJ/kg 72
190
Embodied Water, L/kg 150
930

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
61
Strength to Weight: Axial, points 27
22
Strength to Weight: Bending, points 24
33
Thermal Diffusivity, mm2/s 4.1
54
Thermal Shock Resistance, points 20
9.2

Alloy Composition

Carbon (C), % 0 to 0.13
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0 to 0.75
0 to 0.1
Iron (Fe), % 60.5 to 71.1
0
Magnesium (Mg), % 0
91.5 to 95
Manganese (Mn), % 0.5 to 2.5
0
Molybdenum (Mo), % 0.35 to 0.65
0
Nickel (Ni), % 8.0 to 10
0 to 0.010
Niobium (Nb), % 0.75 to 1.2
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.15
0
Tungsten (W), % 1.3 to 1.8
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
2.0 to 3.1
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3