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EN-MC65220 Magnesium vs. Grade 17 Titanium

EN-MC65220 magnesium belongs to the magnesium alloys classification, while grade 17 titanium belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 grade 17 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 2.2
27
Fatigue Strength, MPa 110
160
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
38
Shear Strength, MPa 150
180
Tensile Strength: Ultimate (UTS), MPa 270
270
Tensile Strength: Yield (Proof), MPa 200
210

Thermal Properties

Latent Heat of Fusion, J/g 340
420
Maximum Temperature: Mechanical, °C 160
320
Melting Completion (Liquidus), °C 610
1660
Melting Onset (Solidus), °C 550
1610
Specific Heat Capacity, J/kg-K 980
540
Thermal Conductivity, W/m-K 110
23
Thermal Expansion, µm/m-K 26
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 120
7.3

Otherwise Unclassified Properties

Density, g/cm3 1.9
4.5
Embodied Carbon, kg CO2/kg material 27
36
Embodied Energy, MJ/kg 210
600

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
68
Resilience: Unit (Modulus of Resilience), kJ/m3 450
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
35
Strength to Weight: Axial, points 40
17
Strength to Weight: Bending, points 49
21
Thermal Diffusivity, mm2/s 61
9.3
Thermal Shock Resistance, points 17
21

Alloy Composition


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Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0.050 to 0.1
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.010
0 to 0.2
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 0.030
Oxygen (O), % 0
0 to 0.18
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 1.3 to 1.7
0
Titanium (Ti), % 0
99.015 to 99.96
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 to 0.4