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Grade 1 Titanium vs. EN AC-45000 Aluminum

Grade 1 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 (2, in this case) are not shown.

For each property being compared, the top bar is grade 1 titanium and the bottom bar is EN AC-45000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
77
Elastic (Young's, Tensile) Modulus, GPa 110
73
Elongation at Break, % 28
1.1
Fatigue Strength, MPa 170
75
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
27
Tensile Strength: Ultimate (UTS), MPa 310
180
Tensile Strength: Yield (Proof), MPa 220
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 20
120
Thermal Expansion, µm/m-K 8.8
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
27
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
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 79
1.7
Resilience: Unit (Modulus of Resilience), kJ/m3 230
80
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
47
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 8.2
47
Thermal Shock Resistance, points 24
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 0.2
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 0.18
0
Silicon (Si), % 0
5.0 to 7.0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 99.095 to 100
0 to 0.25
Zinc (Zn), % 0
0 to 2.0
Residuals, % 0
0 to 0.35