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5182 Aluminum vs. Grade 27 Titanium

5182 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 5182 aluminum and the bottom bar is grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 1.1 to 12
27
Fatigue Strength, MPa 100 to 130
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 25
41
Shear Strength, MPa 170 to 240
180
Tensile Strength: Ultimate (UTS), MPa 280 to 420
270
Tensile Strength: Yield (Proof), MPa 130 to 360
230

Thermal Properties

Latent Heat of Fusion, J/g 390
420
Maximum Temperature: Mechanical, °C 180
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
21
Thermal Expansion, µm/m-K 24
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 94
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 8.9
33
Embodied Energy, MJ/kg 150
530
Embodied Water, L/kg 1180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 49
70
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 950
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
35
Strength to Weight: Axial, points 29 to 44
17
Strength to Weight: Bending, points 36 to 47
21
Thermal Diffusivity, mm2/s 53
8.8
Thermal Shock Resistance, points 12 to 19
21

Alloy Composition


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Aluminum (Al), % 93.2 to 95.8
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.15
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.35
0 to 0.2
Magnesium (Mg), % 4.0 to 5.0
0
Manganese (Mn), % 0.2 to 0.5
0
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 to 0.2
0
Titanium (Ti), % 0 to 0.1
99 to 99.92
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0 to 0.4