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ZK40A Magnesium vs. Grade 5 Titanium

ZK40A magnesium belongs to the magnesium alloys classification, while grade 5 titanium 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 ZK40A magnesium and the bottom bar is grade 5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 4.2
8.6 to 11
Fatigue Strength, MPa 190
530 to 630
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
40
Shear Strength, MPa 160
600 to 710
Tensile Strength: Ultimate (UTS), MPa 280
1000 to 1190
Tensile Strength: Yield (Proof), MPa 260
910 to 1110

Thermal Properties

Latent Heat of Fusion, J/g 340
410
Maximum Temperature: Mechanical, °C 120
330
Melting Completion (Liquidus), °C 600
1610
Melting Onset (Solidus), °C 540
1650
Specific Heat Capacity, J/kg-K 970
560
Thermal Conductivity, W/m-K 110
6.8
Thermal Expansion, µm/m-K 26
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 1.8
4.4
Embodied Carbon, kg CO2/kg material 24
38
Embodied Energy, MJ/kg 160
610
Embodied Water, L/kg 950
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
100 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 740
3980 to 5880
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 65
35
Strength to Weight: Axial, points 43
62 to 75
Strength to Weight: Bending, points 53
50 to 56
Thermal Diffusivity, mm2/s 62
2.7
Thermal Shock Resistance, points 17
76 to 91

Alloy Composition


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Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0
0 to 0.080
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.4
Magnesium (Mg), % 94.2 to 96.1
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Titanium (Ti), % 0
87.4 to 91
Vanadium (V), % 0
3.5 to 4.5
Yttrium (Y), % 0
0 to 0.0050
Zinc (Zn), % 3.5 to 4.5
0
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.4