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ISO-WD32250 Magnesium vs. Titanium 6-6-2

ISO-WD32250 magnesium belongs to the magnesium alloys classification, while titanium 6-6-2 belongs to the titanium alloys. There are 29 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 ISO-WD32250 magnesium and the bottom bar is titanium 6-6-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 4.5 to 8.6
6.7 to 9.0
Fatigue Strength, MPa 170 to 210
590 to 670
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
44
Shear Strength, MPa 180 to 190
670 to 800
Tensile Strength: Ultimate (UTS), MPa 310 to 330
1140 to 1370
Tensile Strength: Yield (Proof), MPa 240 to 290
1040 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 340
400
Maximum Temperature: Mechanical, °C 120
310
Melting Completion (Liquidus), °C 600
1610
Melting Onset (Solidus), °C 550
1560
Specific Heat Capacity, J/kg-K 980
540
Thermal Conductivity, W/m-K 130
5.5
Thermal Expansion, µm/m-K 26
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.1
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
40
Density, g/cm3 1.8
4.8
Embodied Carbon, kg CO2/kg material 24
29
Embodied Energy, MJ/kg 160
470
Embodied Water, L/kg 950
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 26
89 to 99
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 67
34
Strength to Weight: Axial, points 49 to 51
66 to 79
Strength to Weight: Bending, points 58 to 60
50 to 57
Thermal Diffusivity, mm2/s 72
2.1
Thermal Shock Resistance, points 19 to 20
75 to 90

Alloy Composition


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Aluminum (Al), % 0
5.0 to 6.0
Carbon (C), % 0
0 to 0.050
Copper (Cu), % 0
0.35 to 1.0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0.35 to 1.0
Magnesium (Mg), % 94.9 to 97.1
0
Molybdenum (Mo), % 0
5.0 to 6.0
Nitrogen (N), % 0
0 to 0.040
Oxygen (O), % 0
0 to 0.2
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0
82.8 to 87.8
Zinc (Zn), % 2.5 to 4.0
0
Zirconium (Zr), % 0.45 to 0.8
0
Residuals, % 0 to 0.3
0 to 0.4