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Grade Ti-Pd18 Titanium vs. 3105 Aluminum

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while 3105 aluminum belongs to the aluminum alloys. There are 29 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 3105 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 320
29 to 67
Elastic (Young's, Tensile) Modulus, GPa 110
69
Elongation at Break, % 17
1.1 to 20
Fatigue Strength, MPa 350
39 to 95
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 710
120 to 240
Tensile Strength: Yield (Proof), MPa 540
46 to 220

Thermal Properties

Latent Heat of Fusion, J/g 410
400
Maximum Temperature: Mechanical, °C 330
180
Melting Completion (Liquidus), °C 1640
660
Melting Onset (Solidus), °C 1590
640
Specific Heat Capacity, J/kg-K 550
900
Thermal Conductivity, W/m-K 8.2
170
Thermal Expansion, µm/m-K 9.1
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
44
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
140

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.8
Embodied Carbon, kg CO2/kg material 41
8.2
Embodied Energy, MJ/kg 670
150
Embodied Water, L/kg 270
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
2.6 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
15 to 340
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 44
12 to 24
Strength to Weight: Bending, points 39
20 to 31
Thermal Diffusivity, mm2/s 3.3
68
Thermal Shock Resistance, points 52
5.2 to 11

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
96 to 99.5
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 0
0 to 0.2
Copper (Cu), % 0
0 to 0.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 0.7
Magnesium (Mg), % 0
0.2 to 0.8
Manganese (Mn), % 0
0.3 to 0.8
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 0.6
Titanium (Ti), % 92.5 to 95.5
0 to 0.1
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.4
Residuals, % 0
0 to 0.15