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Grade 27 Titanium vs. 6012 Aluminum

Grade 27 titanium belongs to the titanium alloys classification, while 6012 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 grade 27 titanium and the bottom bar is 6012 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
69
Elongation at Break, % 27
9.1 to 11
Fatigue Strength, MPa 170
55 to 100
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
26
Shear Strength, MPa 180
130 to 190
Tensile Strength: Ultimate (UTS), MPa 270
220 to 320
Tensile Strength: Yield (Proof), MPa 230
110 to 260

Thermal Properties

Latent Heat of Fusion, J/g 420
400
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1610
570
Specific Heat Capacity, J/kg-K 540
890
Thermal Conductivity, W/m-K 21
160
Thermal Expansion, µm/m-K 8.7
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
45
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
140

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 4.5
2.9
Embodied Carbon, kg CO2/kg material 33
8.2
Embodied Energy, MJ/kg 530
150
Embodied Water, L/kg 320
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
21 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 240
94 to 480
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
48
Strength to Weight: Axial, points 17
22 to 32
Strength to Weight: Bending, points 21
29 to 37
Thermal Diffusivity, mm2/s 8.8
62
Thermal Shock Resistance, points 21
10 to 14

Alloy Composition

Aluminum (Al), % 0
92.2 to 98
Bismuth (Bi), % 0
0 to 0.7
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.5
Lead (Pb), % 0
0.4 to 2.0
Magnesium (Mg), % 0
0.6 to 1.2
Manganese (Mn), % 0
0.4 to 1.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0.6 to 1.4
Titanium (Ti), % 99 to 99.92
0 to 0.2
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.15