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A384.0 Aluminum vs. Grade Ti-Pd18 Titanium

A384.0 aluminum belongs to the aluminum alloys classification, while grade Ti-Pd18 titanium belongs to the titanium 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 A384.0 aluminum and the bottom bar is grade Ti-Pd18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
110
Elongation at Break, % 2.5
17
Fatigue Strength, MPa 140
350
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 28
40
Tensile Strength: Ultimate (UTS), MPa 330
710
Tensile Strength: Yield (Proof), MPa 170
540

Thermal Properties

Latent Heat of Fusion, J/g 550
410
Maximum Temperature: Mechanical, °C 170
330
Melting Completion (Liquidus), °C 610
1640
Melting Onset (Solidus), °C 510
1590
Specific Heat Capacity, J/kg-K 880
550
Thermal Conductivity, W/m-K 96
8.2
Thermal Expansion, µm/m-K 21
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 73
2.7

Otherwise Unclassified Properties

Density, g/cm3 2.8
4.5
Embodied Carbon, kg CO2/kg material 7.5
41
Embodied Energy, MJ/kg 140
670
Embodied Water, L/kg 1010
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
1380
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 50
35
Strength to Weight: Axial, points 32
44
Strength to Weight: Bending, points 38
39
Thermal Diffusivity, mm2/s 39
3.3
Thermal Shock Resistance, points 15
52

Alloy Composition

Aluminum (Al), % 79.3 to 86.5
2.5 to 3.5
Carbon (C), % 0
0 to 0.1
Copper (Cu), % 3.0 to 4.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 1.3
0 to 0.25
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.5
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 10.5 to 12
0
Tin (Sn), % 0 to 0.35
0
Titanium (Ti), % 0
92.5 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0
0 to 0.4