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Titanium 6-2-4-2 vs. ZK51A Magnesium

Titanium 6-2-4-2 belongs to the titanium alloys classification, while ZK51A magnesium belongs to the magnesium 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 titanium 6-2-4-2 and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 8.6
4.7
Fatigue Strength, MPa 490
62
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
18
Shear Strength, MPa 560
160
Tensile Strength: Ultimate (UTS), MPa 950
240
Tensile Strength: Yield (Proof), MPa 880
150

Thermal Properties

Latent Heat of Fusion, J/g 400
340
Maximum Temperature: Mechanical, °C 300
120
Melting Completion (Liquidus), °C 1590
640
Melting Onset (Solidus), °C 1540
550
Specific Heat Capacity, J/kg-K 540
970
Thermal Conductivity, W/m-K 6.9
110
Thermal Expansion, µm/m-K 9.5
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 0.9
28
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
140

Otherwise Unclassified Properties

Base Metal Price, % relative 42
13
Density, g/cm3 4.6
1.8
Embodied Carbon, kg CO2/kg material 32
24
Embodied Energy, MJ/kg 520
160
Embodied Water, L/kg 210
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
10
Resilience: Unit (Modulus of Resilience), kJ/m3 3640
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 34
64
Strength to Weight: Axial, points 57
36
Strength to Weight: Bending, points 46
47
Thermal Diffusivity, mm2/s 2.8
61
Thermal Shock Resistance, points 67
15

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.050
0
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0
Magnesium (Mg), % 0
93.1 to 95.9
Molybdenum (Mo), % 1.8 to 2.2
0
Nickel (Ni), % 0
0 to 0.010
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Silicon (Si), % 0.060 to 0.12
0
Tin (Sn), % 1.8 to 2.2
0
Titanium (Ti), % 83.7 to 87.2
0
Zinc (Zn), % 0
3.6 to 5.5
Zirconium (Zr), % 3.6 to 4.4
0.5 to 1.0
Residuals, % 0
0 to 0.3