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EN-MC65220 Magnesium vs. Titanium 6-7

EN-MC65220 magnesium belongs to the magnesium alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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 titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
120
Elongation at Break, % 2.2
11
Fatigue Strength, MPa 110
530
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
45
Shear Strength, MPa 150
610
Tensile Strength: Ultimate (UTS), MPa 270
1020
Tensile Strength: Yield (Proof), MPa 200
900

Thermal Properties

Latent Heat of Fusion, J/g 340
410
Maximum Temperature: Mechanical, °C 160
300
Melting Completion (Liquidus), °C 610
1700
Melting Onset (Solidus), °C 550
1650
Specific Heat Capacity, J/kg-K 980
520
Thermal Expansion, µm/m-K 26
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 80
75
Density, g/cm3 1.9
5.1
Embodied Carbon, kg CO2/kg material 27
34
Embodied Energy, MJ/kg 210
540

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
110
Resilience: Unit (Modulus of Resilience), kJ/m3 450
3460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
32
Strength to Weight: Axial, points 40
56
Strength to Weight: Bending, points 49
44
Thermal Shock Resistance, points 17
66

Alloy Composition


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Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0.050 to 0.1
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 0 to 0.010
0 to 0.25
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 0 to 0.0050
0
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 1.3 to 1.7
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88
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