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Grade Ti-Pd18 Titanium vs. 515.0 Aluminum

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while 515.0 aluminum belongs to the aluminum alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is grade Ti-Pd18 titanium and the bottom bar is 515.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 17
10
Fatigue Strength, MPa 350
130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 710
280

Thermal Properties

Latent Heat of Fusion, J/g 410
470
Maximum Temperature: Mechanical, °C 330
170
Melting Completion (Liquidus), °C 1640
620
Melting Onset (Solidus), °C 1590
620
Specific Heat Capacity, J/kg-K 550
900
Thermal Expansion, µm/m-K 9.1
23

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.6
Embodied Carbon, kg CO2/kg material 41
8.4
Embodied Energy, MJ/kg 670
150
Embodied Water, L/kg 270
1120

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
52
Strength to Weight: Axial, points 44
30
Strength to Weight: Bending, points 39
36
Thermal Shock Resistance, points 52
13

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
93.6 to 96.6
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 1.3
Magnesium (Mg), % 0
2.5 to 4.0
Manganese (Mn), % 0
0.4 to 0.6
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
0.5 to 10
Titanium (Ti), % 92.5 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15