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Grade 6 Titanium vs. 771.0 Aluminum

Grade 6 titanium belongs to the titanium alloys classification, while 771.0 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 grade 6 titanium and the bottom bar is 771.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
70
Elongation at Break, % 11
1.7 to 6.5
Fatigue Strength, MPa 290
92 to 180
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 39
26
Tensile Strength: Ultimate (UTS), MPa 890
250 to 370
Tensile Strength: Yield (Proof), MPa 840
210 to 350

Thermal Properties

Latent Heat of Fusion, J/g 410
380
Maximum Temperature: Mechanical, °C 310
180
Melting Completion (Liquidus), °C 1580
630
Melting Onset (Solidus), °C 1530
620
Specific Heat Capacity, J/kg-K 550
870
Thermal Conductivity, W/m-K 7.8
140 to 150
Thermal Expansion, µm/m-K 9.4
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
82

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 4.5
3.0
Embodied Carbon, kg CO2/kg material 30
8.0
Embodied Energy, MJ/kg 480
150
Embodied Water, L/kg 190
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
4.4 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
310 to 900
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
46
Strength to Weight: Axial, points 55
23 to 35
Strength to Weight: Bending, points 46
29 to 39
Thermal Diffusivity, mm2/s 3.2
54 to 58
Thermal Shock Resistance, points 65
11 to 16

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
90.5 to 92.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0.060 to 0.2
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
0 to 0.15
Magnesium (Mg), % 0
0.8 to 1.0
Manganese (Mn), % 0
0 to 0.1
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Silicon (Si), % 0
0 to 0.15
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0.1 to 0.2
Zinc (Zn), % 0
6.5 to 7.5
Residuals, % 0
0 to 0.15