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3105 Aluminum vs. Grade Ti-Pd18 Titanium

3105 aluminum belongs to the aluminum alloys classification, while grade Ti-Pd18 titanium belongs to the titanium 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 3105 aluminum and the bottom bar is grade Ti-Pd18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Aluminum (Al), % 96 to 99.5
2.5 to 3.5
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.7
0 to 0.25
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Nickel (Ni), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 0 to 0.6
0
Titanium (Ti), % 0 to 0.1
92.5 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0
0 to 0.4