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8176 Aluminum vs. Grade 27 Titanium

8176 aluminum belongs to the aluminum alloys classification, while grade 27 titanium belongs to the titanium 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 8176 aluminum and the bottom bar is grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 15
27
Fatigue Strength, MPa 59
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Shear Strength, MPa 70
180
Tensile Strength: Ultimate (UTS), MPa 160
270
Tensile Strength: Yield (Proof), MPa 95
230

Thermal Properties

Latent Heat of Fusion, J/g 400
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 660
1660
Melting Onset (Solidus), °C 650
1610
Specific Heat Capacity, J/kg-K 900
540
Thermal Conductivity, W/m-K 230
21
Thermal Expansion, µm/m-K 24
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 200
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 8.2
33
Embodied Energy, MJ/kg 150
530
Embodied Water, L/kg 1190
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
70
Resilience: Unit (Modulus of Resilience), kJ/m3 66
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
35
Strength to Weight: Axial, points 16
17
Strength to Weight: Bending, points 24
21
Thermal Diffusivity, mm2/s 93
8.8
Thermal Shock Resistance, points 7.0
21

Alloy Composition

Aluminum (Al), % 98.6 to 99.6
0
Carbon (C), % 0
0 to 0.080
Gallium (Ga), % 0 to 0.030
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0.4 to 1.0
0 to 0.2
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0.030 to 0.15
0
Titanium (Ti), % 0
99 to 99.92
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.4