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Grade Ti-Pd18 Titanium vs. 5254 Aluminum

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while 5254 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 5254 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
68
Elongation at Break, % 17
3.4 to 22
Fatigue Strength, MPa 350
110 to 160
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 710
240 to 350
Tensile Strength: Yield (Proof), MPa 540
100 to 270

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
590
Specific Heat Capacity, J/kg-K 550
900
Thermal Conductivity, W/m-K 8.2
130
Thermal Expansion, µm/m-K 9.1
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
32
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
110

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.7
Embodied Carbon, kg CO2/kg material 41
8.8
Embodied Energy, MJ/kg 670
150
Embodied Water, L/kg 270
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
11 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
73 to 550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
51
Strength to Weight: Axial, points 44
25 to 37
Strength to Weight: Bending, points 39
32 to 41
Thermal Diffusivity, mm2/s 3.3
52
Thermal Shock Resistance, points 52
10 to 16

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
94.4 to 96.8
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 0
0.15 to 0.35
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
3.1 to 3.9
Manganese (Mn), % 0
0 to 0.010
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 0.45
Titanium (Ti), % 92.5 to 95.5
0 to 0.050
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15