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Grade 27 Titanium vs. EN AC-46200 Aluminum

Grade 27 titanium belongs to the titanium alloys classification, while EN AC-46200 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 27 titanium and the bottom bar is EN AC-46200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
73
Elongation at Break, % 27
1.1
Fatigue Strength, MPa 170
87
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
27
Tensile Strength: Ultimate (UTS), MPa 270
210
Tensile Strength: Yield (Proof), MPa 230
130

Thermal Properties

Latent Heat of Fusion, J/g 420
510
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
620
Melting Onset (Solidus), °C 1610
540
Specific Heat Capacity, J/kg-K 540
880
Thermal Conductivity, W/m-K 21
110
Thermal Expansion, µm/m-K 8.7
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
28
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
88

Otherwise Unclassified Properties

Base Metal Price, % relative 37
10
Density, g/cm3 4.5
2.8
Embodied Carbon, kg CO2/kg material 33
7.7
Embodied Energy, MJ/kg 530
140
Embodied Water, L/kg 320
1060

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
2.0
Resilience: Unit (Modulus of Resilience), kJ/m3 240
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 21
28
Thermal Diffusivity, mm2/s 8.8
44
Thermal Shock Resistance, points 21
9.5

Alloy Composition

Aluminum (Al), % 0
82.6 to 90.3
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
2.0 to 3.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.8
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 0
0.050 to 0.55
Manganese (Mn), % 0
0.15 to 0.65
Nickel (Ni), % 0
0 to 0.35
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
7.5 to 9.5
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 99 to 99.92
0 to 0.25
Zinc (Zn), % 0
0 to 1.2
Residuals, % 0
0 to 0.25