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AWS E3155 vs. EZ33A Magnesium

AWS E3155 belongs to the iron alloys classification, while EZ33A magnesium belongs to the magnesium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, 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 E3155 and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
44
Elongation at Break, % 23
2.6
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
17
Tensile Strength: Ultimate (UTS), MPa 770
150

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1410
570
Specific Heat Capacity, J/kg-K 450
970
Thermal Conductivity, W/m-K 13
100
Thermal Expansion, µm/m-K 13
27

Otherwise Unclassified Properties

Base Metal Price, % relative 70
25
Density, g/cm3 8.4
1.9
Embodied Carbon, kg CO2/kg material 7.7
25
Embodied Energy, MJ/kg 110
190
Embodied Water, L/kg 300
930

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
61
Strength to Weight: Axial, points 26
22
Strength to Weight: Bending, points 22
33
Thermal Diffusivity, mm2/s 3.3
54
Thermal Shock Resistance, points 20
9.2

Alloy Composition

Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0 to 0.75
0 to 0.1
Iron (Fe), % 23.3 to 36.3
0
Magnesium (Mg), % 0
91.5 to 95
Manganese (Mn), % 1.0 to 2.5
0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0 to 0.010
Niobium (Nb), % 0.75 to 1.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 2.0 to 3.0
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.1
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3