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5086 Aluminum vs. Grade 7 Titanium

5086 aluminum belongs to the aluminum alloys classification, while grade 7 titanium belongs to the titanium alloys. There are 30 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 5086 aluminum and the bottom bar is grade 7 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 65 to 100
150
Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 1.7 to 20
24
Fatigue Strength, MPa 88 to 180
250
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
38
Shear Strength, MPa 160 to 230
270
Tensile Strength: Ultimate (UTS), MPa 270 to 390
420
Tensile Strength: Yield (Proof), MPa 110 to 320
340

Thermal Properties

Latent Heat of Fusion, J/g 400
420
Maximum Temperature: Mechanical, °C 190
320
Melting Completion (Liquidus), °C 640
1660
Melting Onset (Solidus), °C 590
1610
Specific Heat Capacity, J/kg-K 900
540
Thermal Conductivity, W/m-K 130
22
Thermal Expansion, µm/m-K 24
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 100
7.2

Otherwise Unclassified Properties

Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 8.8
47
Embodied Energy, MJ/kg 150
800
Embodied Water, L/kg 1180
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.8 to 42
95
Resilience: Unit (Modulus of Resilience), kJ/m3 86 to 770
560
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
35
Strength to Weight: Axial, points 28 to 40
26
Strength to Weight: Bending, points 34 to 44
28
Thermal Diffusivity, mm2/s 52
8.9
Thermal Shock Resistance, points 12 to 17
31

Alloy Composition

Aluminum (Al), % 93 to 96.3
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0.050 to 0.25
0
Copper (Cu), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.5
0 to 0.3
Magnesium (Mg), % 3.5 to 4.5
0
Manganese (Mn), % 0.2 to 0.7
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.12 to 0.25
Silicon (Si), % 0 to 0.4
0
Titanium (Ti), % 0 to 0.15
98.7 to 99.88
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0
0 to 0.4