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Grade Ti-Pd18 Titanium vs. 5051A Aluminum

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while 5051A aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade Ti-Pd18 titanium and the bottom bar is 5051A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
68
Elongation at Break, % 17
18 to 21
Fatigue Strength, MPa 350
51 to 61
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 710
170
Tensile Strength: Yield (Proof), MPa 540
56

Thermal Properties

Latent Heat of Fusion, J/g 410
400
Maximum Temperature: Mechanical, °C 330
190
Melting Completion (Liquidus), °C 1640
640
Melting Onset (Solidus), °C 1590
610
Specific Heat Capacity, J/kg-K 550
900
Thermal Conductivity, W/m-K 8.2
150
Thermal Expansion, µm/m-K 9.1
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
39
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
130

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.7
Embodied Carbon, kg CO2/kg material 41
8.5
Embodied Energy, MJ/kg 670
150
Embodied Water, L/kg 270
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
24 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
23
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 44
17 to 18
Strength to Weight: Bending, points 39
25
Thermal Diffusivity, mm2/s 3.3
63
Thermal Shock Resistance, points 52
7.6

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
96.1 to 98.6
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.050
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 0.45
Magnesium (Mg), % 0
1.4 to 2.1
Manganese (Mn), % 0
0 to 0.25
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 to 0.3
Titanium (Ti), % 92.5 to 95.5
0 to 0.1
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15