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EN-MC21230 Magnesium vs. Titanium 6-5-0.5

EN-MC21230 magnesium belongs to the magnesium alloys classification, while titanium 6-5-0.5 belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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-MC21230 magnesium and the bottom bar is titanium 6-5-0.5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 10
6.7
Fatigue Strength, MPa 99
530
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
40
Shear Strength, MPa 130
630
Tensile Strength: Ultimate (UTS), MPa 220
1080
Tensile Strength: Yield (Proof), MPa 140
990

Thermal Properties

Latent Heat of Fusion, J/g 350
410
Maximum Temperature: Mechanical, °C 120
300
Melting Completion (Liquidus), °C 600
1610
Melting Onset (Solidus), °C 520
1560
Specific Heat Capacity, J/kg-K 1000
550
Thermal Conductivity, W/m-K 72
4.2
Thermal Expansion, µm/m-K 27
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 63
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
41
Density, g/cm3 1.7
4.5
Embodied Carbon, kg CO2/kg material 23
33
Embodied Energy, MJ/kg 160
540
Embodied Water, L/kg 990
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
71
Resilience: Unit (Modulus of Resilience), kJ/m3 200
4630
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
35
Strength to Weight: Axial, points 36
67
Strength to Weight: Bending, points 48
52
Thermal Diffusivity, mm2/s 43
1.7
Thermal Shock Resistance, points 13
79

Alloy Composition


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Aluminum (Al), % 5.5 to 8.5
5.7 to 6.3
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.010
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.0050
0 to 0.2
Magnesium (Mg), % 90.5 to 94.4
0
Manganese (Mn), % 0.1 to 0.6
0
Molybdenum (Mo), % 0
0.25 to 0.75
Nickel (Ni), % 0 to 0.0020
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.19
Silicon (Si), % 0 to 0.1
0 to 0.4
Titanium (Ti), % 0
85.6 to 90.1
Zinc (Zn), % 0 to 0.3
0
Zirconium (Zr), % 0
4.0 to 6.0
Residuals, % 0 to 0.010
0 to 0.4