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ZK60A Magnesium vs. Titanium 6-2-4-2

ZK60A magnesium belongs to the magnesium alloys classification, while titanium 6-2-4-2 belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 ZK60A magnesium and the bottom bar is titanium 6-2-4-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
110
Elongation at Break, % 4.5 to 9.9
8.6
Fatigue Strength, MPa 150 to 180
490
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
40
Shear Strength, MPa 170 to 190
560
Tensile Strength: Ultimate (UTS), MPa 320 to 330
950
Tensile Strength: Yield (Proof), MPa 230 to 250
880

Thermal Properties

Latent Heat of Fusion, J/g 330
400
Maximum Temperature: Mechanical, °C 120
300
Melting Completion (Liquidus), °C 600
1590
Melting Onset (Solidus), °C 550
1540
Specific Heat Capacity, J/kg-K 960
540
Thermal Conductivity, W/m-K 120
6.9
Thermal Expansion, µm/m-K 26
9.5

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29 to 30
0.9
Electrical Conductivity: Equal Weight (Specific), % IACS 140
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
42
Density, g/cm3 1.9
4.6
Embodied Carbon, kg CO2/kg material 23
32
Embodied Energy, MJ/kg 160
520
Embodied Water, L/kg 940
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 29
79
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 690
3640
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 63
34
Strength to Weight: Axial, points 47 to 49
57
Strength to Weight: Bending, points 55 to 56
46
Thermal Diffusivity, mm2/s 66
2.8
Thermal Shock Resistance, points 19 to 20
67

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0
0 to 0.050
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.25
Magnesium (Mg), % 92.5 to 94.8
0
Molybdenum (Mo), % 0
1.8 to 2.2
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Silicon (Si), % 0
0.060 to 0.12
Tin (Sn), % 0
1.8 to 2.2
Titanium (Ti), % 0
83.7 to 87.2
Zinc (Zn), % 4.8 to 6.2
0
Zirconium (Zr), % 0.45 to 1.0
3.6 to 4.4
Residuals, % 0
0 to 0.4