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Grade 20 Titanium vs. EN AC-45000 Aluminum

Grade 20 titanium belongs to the titanium alloys classification, while EN AC-45000 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is EN AC-45000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
73
Elongation at Break, % 5.7 to 17
1.1
Fatigue Strength, MPa 550 to 630
75
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 47
27
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
180
Tensile Strength: Yield (Proof), MPa 850 to 1190
110

Thermal Properties

Latent Heat of Fusion, J/g 400
470
Maximum Temperature: Mechanical, °C 370
180
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1600
520
Specific Heat Capacity, J/kg-K 520
870
Thermal Expansion, µm/m-K 9.6
22

Otherwise Unclassified Properties

Density, g/cm3 5.0
3.0
Embodied Carbon, kg CO2/kg material 52
7.7
Embodied Energy, MJ/kg 860
140
Embodied Water, L/kg 350
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
1.7
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
80
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 33
47
Strength to Weight: Axial, points 50 to 70
17
Strength to Weight: Bending, points 41 to 52
24
Thermal Shock Resistance, points 55 to 77
8.0

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
82.2 to 91.8
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0 to 0.15
Copper (Cu), % 0
3.0 to 5.0
Hydrogen (H), % 0 to 0.020
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
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 0
0 to 0.45
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.12
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
5.0 to 7.0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 71 to 77
0 to 0.25
Vanadium (V), % 7.5 to 8.5
0
Zinc (Zn), % 0
0 to 2.0
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0
0 to 0.35