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Grade 24 Titanium vs. EN AC-21200 Aluminum

Grade 24 titanium belongs to the titanium alloys classification, while EN AC-21200 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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-21200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 11
3.9 to 6.2
Fatigue Strength, MPa 550
110 to 130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
27
Tensile Strength: Ultimate (UTS), MPa 1010
410 to 440
Tensile Strength: Yield (Proof), MPa 940
270 to 360

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 340
170
Melting Completion (Liquidus), °C 1610
660
Melting Onset (Solidus), °C 1560
550
Specific Heat Capacity, J/kg-K 560
880
Thermal Conductivity, W/m-K 7.1
130
Thermal Expansion, µm/m-K 9.6
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
34
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
100

Otherwise Unclassified Properties

Density, g/cm3 4.5
3.0
Embodied Carbon, kg CO2/kg material 43
8.0
Embodied Energy, MJ/kg 710
150
Embodied Water, L/kg 310
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
16 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
500 to 930
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
46
Strength to Weight: Axial, points 63
38 to 40
Strength to Weight: Bending, points 50
41 to 43
Thermal Diffusivity, mm2/s 2.9
49
Thermal Shock Resistance, points 72
18 to 19

Alloy Composition


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Aluminum (Al), % 5.5 to 6.8
93.3 to 95.7
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
4.0 to 5.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.2
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0
0.15 to 0.5
Manganese (Mn), % 0
0.2 to 0.5
Nickel (Ni), % 0
0 to 0.050
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
0 to 0.1
Tin (Sn), % 0
0 to 0.030
Titanium (Ti), % 87.5 to 91
0 to 0.1
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0 to 0.4
0 to 0.1