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Grade 2 Titanium vs. EN AC-45000 Aluminum

Grade 2 titanium belongs to the titanium alloys classification, while EN AC-45000 aluminum belongs to the aluminum alloys. There are 30 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 2 titanium and the bottom bar is EN AC-45000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
77
Elastic (Young's, Tensile) Modulus, GPa 110
73
Elongation at Break, % 23
1.1
Fatigue Strength, MPa 250
75
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 38
27
Tensile Strength: Ultimate (UTS), MPa 420
180
Tensile Strength: Yield (Proof), MPa 360
110

Thermal Properties

Latent Heat of Fusion, J/g 420
470
Maximum Temperature: Mechanical, °C 320
180
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1610
520
Specific Heat Capacity, J/kg-K 540
870
Thermal Conductivity, W/m-K 22
120
Thermal Expansion, µm/m-K 9.0
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
27
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
81

Otherwise Unclassified Properties

Base Metal Price, % relative 37
11
Density, g/cm3 4.5
3.0
Embodied Carbon, kg CO2/kg material 31
7.7
Embodied Energy, MJ/kg 510
140
Embodied Water, L/kg 110
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
1.7
Resilience: Unit (Modulus of Resilience), kJ/m3 600
80
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
47
Strength to Weight: Axial, points 26
17
Strength to Weight: Bending, points 28
24
Thermal Diffusivity, mm2/s 8.9
47
Thermal Shock Resistance, points 32
8.0

Alloy Composition

Aluminum (Al), % 0
82.2 to 91.8
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0
3.0 to 5.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 1.0
Lead (Pb), % 0
0 to 0.3
Magnesium (Mg), % 0
0 to 0.55
Manganese (Mn), % 0
0.2 to 0.65
Nickel (Ni), % 0
0 to 0.45
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Silicon (Si), % 0
5.0 to 7.0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 98.9 to 100
0 to 0.25
Zinc (Zn), % 0
0 to 2.0
Residuals, % 0
0 to 0.35