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Titanium 6-2-4-2 vs. 705.0 Aluminum

Titanium 6-2-4-2 belongs to the titanium alloys classification, while 705.0 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 titanium 6-2-4-2 and the bottom bar is 705.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
69
Elongation at Break, % 8.6
8.4 to 10
Fatigue Strength, MPa 490
63 to 98
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 950
240 to 260
Tensile Strength: Yield (Proof), MPa 880
130

Thermal Properties

Latent Heat of Fusion, J/g 400
390
Maximum Temperature: Mechanical, °C 300
180
Melting Completion (Liquidus), °C 1590
640
Melting Onset (Solidus), °C 1540
610
Specific Heat Capacity, J/kg-K 540
890
Thermal Conductivity, W/m-K 6.9
140
Thermal Expansion, µm/m-K 9.5
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 0.9
34
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
110

Otherwise Unclassified Properties

Base Metal Price, % relative 42
9.5
Density, g/cm3 4.6
2.8
Embodied Carbon, kg CO2/kg material 32
8.4
Embodied Energy, MJ/kg 520
150
Embodied Water, L/kg 210
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
18 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 3640
120 to 130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 34
49
Strength to Weight: Axial, points 57
24 to 26
Strength to Weight: Bending, points 46
31 to 32
Thermal Diffusivity, mm2/s 2.8
55
Thermal Shock Resistance, points 67
11

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
92.3 to 98.6
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 0
0 to 0.4
Copper (Cu), % 0
0 to 0.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 0.8
Magnesium (Mg), % 0
1.4 to 1.8
Manganese (Mn), % 0
0 to 0.6
Molybdenum (Mo), % 1.8 to 2.2
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Silicon (Si), % 0.060 to 0.12
0 to 0.2
Tin (Sn), % 1.8 to 2.2
0
Titanium (Ti), % 83.7 to 87.2
0 to 0.25
Zinc (Zn), % 0
0 to 3.3
Zirconium (Zr), % 3.6 to 4.4
0
Residuals, % 0
0 to 0.15