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EN-MC65220 Magnesium vs. AWS ERTi-2

EN-MC65220 magnesium belongs to the magnesium alloys classification, while AWS ERTi-2 belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 ERTi-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 2.2
20
Fatigue Strength, MPa 110
190
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 270
340
Tensile Strength: Yield (Proof), MPa 200
280

Thermal Properties

Latent Heat of Fusion, J/g 340
420
Maximum Temperature: Mechanical, °C 160
320
Melting Completion (Liquidus), °C 610
1670
Melting Onset (Solidus), °C 550
1620
Specific Heat Capacity, J/kg-K 980
540
Thermal Conductivity, W/m-K 110
21
Thermal Expansion, µm/m-K 26
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 120
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 80
37
Density, g/cm3 1.9
4.5
Embodied Carbon, kg CO2/kg material 27
31
Embodied Energy, MJ/kg 210
510

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
64
Resilience: Unit (Modulus of Resilience), kJ/m3 450
360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
35
Strength to Weight: Axial, points 40
21
Strength to Weight: Bending, points 49
24
Thermal Diffusivity, mm2/s 61
8.7
Thermal Shock Resistance, points 17
27

Alloy Composition


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Carbon (C), % 0
0 to 0.030
Copper (Cu), % 0.050 to 0.1
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 0 to 0.010
0 to 0.12
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Nitrogen (N), % 0
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 1.3 to 1.7
0
Titanium (Ti), % 0
99.667 to 99.92
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