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Grade 6 Titanium vs. EN AC-45500 Aluminum

Grade 6 titanium belongs to the titanium alloys classification, while EN AC-45500 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 6 titanium and the bottom bar is EN AC-45500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
70
Elongation at Break, % 11
2.8
Fatigue Strength, MPa 290
80
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
26
Tensile Strength: Ultimate (UTS), MPa 890
320
Tensile Strength: Yield (Proof), MPa 840
250

Thermal Properties

Latent Heat of Fusion, J/g 410
500
Maximum Temperature: Mechanical, °C 310
170
Melting Completion (Liquidus), °C 1580
610
Melting Onset (Solidus), °C 1530
600
Specific Heat Capacity, J/kg-K 550
900
Thermal Conductivity, W/m-K 7.8
150
Thermal Expansion, µm/m-K 9.4
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
110

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 4.5
2.6
Embodied Carbon, kg CO2/kg material 30
8.0
Embodied Energy, MJ/kg 480
150
Embodied Water, L/kg 190
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
8.2
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
430
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
53
Strength to Weight: Axial, points 55
34
Strength to Weight: Bending, points 46
40
Thermal Diffusivity, mm2/s 3.2
65
Thermal Shock Resistance, points 65
15

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
90.6 to 93.1
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0.2 to 0.7
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
0 to 0.25
Magnesium (Mg), % 0
0.2 to 0.45
Manganese (Mn), % 0
0 to 0.15
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Silicon (Si), % 0
6.5 to 7.5
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0 to 0.2
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0 to 0.4
0 to 0.1