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Grade 24 Titanium vs. EN AC-42100 Aluminum

Grade 24 titanium belongs to the titanium alloys classification, while EN AC-42100 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-42100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 11
3.4 to 9.0
Fatigue Strength, MPa 550
76 to 82
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 1010
280 to 290
Tensile Strength: Yield (Proof), MPa 940
210 to 230

Thermal Properties

Latent Heat of Fusion, J/g 410
500
Maximum Temperature: Mechanical, °C 340
170
Melting Completion (Liquidus), °C 1610
610
Melting Onset (Solidus), °C 1560
600
Specific Heat Capacity, J/kg-K 560
910
Thermal Conductivity, W/m-K 7.1
150
Thermal Expansion, µm/m-K 9.6
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
41
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
140

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.6
Embodied Carbon, kg CO2/kg material 43
8.0
Embodied Energy, MJ/kg 710
150
Embodied Water, L/kg 310
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
9.1 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
300 to 370
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
53
Strength to Weight: Axial, points 63
30 to 31
Strength to Weight: Bending, points 50
37 to 38
Thermal Diffusivity, mm2/s 2.9
66
Thermal Shock Resistance, points 72
13

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
91.3 to 93.3
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.050
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.19
Magnesium (Mg), % 0
0.25 to 0.45
Manganese (Mn), % 0
0 to 0.1
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
6.5 to 7.5
Titanium (Ti), % 87.5 to 91
0 to 0.25
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0 to 0.4
0 to 0.1