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Grade 24 Titanium vs. EN AC-71100 Aluminum

Grade 24 titanium belongs to the titanium alloys classification, while EN AC-71100 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade 24 titanium and the bottom bar is EN AC-71100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
72
Elongation at Break, % 11
1.1
Fatigue Strength, MPa 550
150
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 40
27
Tensile Strength: Ultimate (UTS), MPa 1010
260
Tensile Strength: Yield (Proof), MPa 940
230

Thermal Properties

Latent Heat of Fusion, J/g 410
490
Maximum Temperature: Mechanical, °C 340
170
Melting Completion (Liquidus), °C 1610
580
Melting Onset (Solidus), °C 1560
520
Specific Heat Capacity, J/kg-K 560
860
Thermal Expansion, µm/m-K 9.6
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
32
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
97

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.9
Embodied Carbon, kg CO2/kg material 43
7.4
Embodied Energy, MJ/kg 710
140
Embodied Water, L/kg 310
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
2.8
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
360
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
47
Strength to Weight: Axial, points 63
25
Strength to Weight: Bending, points 50
31
Thermal Shock Resistance, points 72
12

Alloy Composition


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Aluminum (Al), % 5.5 to 6.8
78.7 to 83.3
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.3
Magnesium (Mg), % 0
0.2 to 0.5
Manganese (Mn), % 0
0 to 0.15
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
7.5 to 9.5
Titanium (Ti), % 87.5 to 91
0 to 0.15
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
9.0 to 10.5
Residuals, % 0 to 0.4
0 to 0.15