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Grade Ti-Pd18 Titanium vs. ZK51A Magnesium

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, 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 grade Ti-Pd18 titanium and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 17
4.7
Fatigue Strength, MPa 350
62
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
18
Tensile Strength: Ultimate (UTS), MPa 710
240
Tensile Strength: Yield (Proof), MPa 540
150

Thermal Properties

Latent Heat of Fusion, J/g 410
340
Maximum Temperature: Mechanical, °C 330
120
Melting Completion (Liquidus), °C 1640
640
Melting Onset (Solidus), °C 1590
550
Specific Heat Capacity, J/kg-K 550
970
Thermal Conductivity, W/m-K 8.2
110
Thermal Expansion, µm/m-K 9.1
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
28
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
140

Otherwise Unclassified Properties

Density, g/cm3 4.5
1.8
Embodied Carbon, kg CO2/kg material 41
24
Embodied Energy, MJ/kg 670
160
Embodied Water, L/kg 270
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
10
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
64
Strength to Weight: Axial, points 44
36
Strength to Weight: Bending, points 39
47
Thermal Diffusivity, mm2/s 3.3
61
Thermal Shock Resistance, points 52
15

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.1
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
Nickel (Ni), % 0 to 0.050
0 to 0.010
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Titanium (Ti), % 92.5 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3