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Titanium 6-5-0.5 vs. 7175 Aluminum

Titanium 6-5-0.5 belongs to the titanium alloys classification, while 7175 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is titanium 6-5-0.5 and the bottom bar is 7175 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
70
Elongation at Break, % 6.7
3.8 to 5.9
Fatigue Strength, MPa 530
150 to 180
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 40
26
Shear Strength, MPa 630
290 to 330
Tensile Strength: Ultimate (UTS), MPa 1080
520 to 570
Tensile Strength: Yield (Proof), MPa 990
430 to 490

Thermal Properties

Latent Heat of Fusion, J/g 410
380
Maximum Temperature: Mechanical, °C 300
180
Melting Completion (Liquidus), °C 1610
640
Melting Onset (Solidus), °C 1560
480
Specific Heat Capacity, J/kg-K 550
870
Thermal Conductivity, W/m-K 4.2
140
Thermal Expansion, µm/m-K 9.4
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
99

Otherwise Unclassified Properties

Base Metal Price, % relative 41
10
Density, g/cm3 4.5
3.0
Embodied Carbon, kg CO2/kg material 33
8.2
Embodied Energy, MJ/kg 540
150
Embodied Water, L/kg 180
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
18 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 4630
1310 to 1730
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
46
Strength to Weight: Axial, points 67
48 to 52
Strength to Weight: Bending, points 52
48 to 51
Thermal Diffusivity, mm2/s 1.7
53
Thermal Shock Resistance, points 79
23 to 25

Alloy Composition

Aluminum (Al), % 5.7 to 6.3
88 to 91.4
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 0
1.2 to 2.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.2
Magnesium (Mg), % 0
2.1 to 2.9
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0.25 to 0.75
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.19
0
Silicon (Si), % 0 to 0.4
0 to 0.15
Titanium (Ti), % 85.6 to 90.1
0 to 0.1
Zinc (Zn), % 0
5.1 to 6.1
Zirconium (Zr), % 4.0 to 6.0
0
Residuals, % 0 to 0.4
0 to 0.15