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Grade Ti-Pd18 Titanium vs. 238.0 Aluminum

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while 238.0 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade Ti-Pd18 titanium and the bottom bar is 238.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
76
Elongation at Break, % 17
1.5
Fatigue Strength, MPa 350
110
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
28
Tensile Strength: Ultimate (UTS), MPa 710
210
Tensile Strength: Yield (Proof), MPa 540
170

Thermal Properties

Latent Heat of Fusion, J/g 410
430
Maximum Temperature: Mechanical, °C 330
170
Melting Completion (Liquidus), °C 1640
600
Melting Onset (Solidus), °C 1590
510
Specific Heat Capacity, J/kg-K 550
840
Thermal Conductivity, W/m-K 8.2
100
Thermal Expansion, µm/m-K 9.1
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
67

Otherwise Unclassified Properties

Density, g/cm3 4.5
3.4
Embodied Carbon, kg CO2/kg material 41
7.4
Embodied Energy, MJ/kg 670
140
Embodied Water, L/kg 270
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
180
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
42
Strength to Weight: Axial, points 44
17
Strength to Weight: Bending, points 39
23
Thermal Diffusivity, mm2/s 3.3
37
Thermal Shock Resistance, points 52
9.1

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
81.9 to 84.9
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
9.5 to 10.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
1.0 to 1.5
Magnesium (Mg), % 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
3.6 to 4.4
Titanium (Ti), % 92.5 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
1.0 to 1.5
Residuals, % 0 to 0.4
0