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Grade 24 Titanium vs. 4147 Aluminum

Grade 24 titanium belongs to the titanium alloys classification, while 4147 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 24 titanium and the bottom bar is 4147 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
72
Elongation at Break, % 11
3.3
Fatigue Strength, MPa 550
42
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
27
Shear Strength, MPa 610
63
Tensile Strength: Ultimate (UTS), MPa 1010
110
Tensile Strength: Yield (Proof), MPa 940
59

Thermal Properties

Latent Heat of Fusion, J/g 410
570
Maximum Temperature: Mechanical, °C 340
160
Melting Completion (Liquidus), °C 1610
580
Melting Onset (Solidus), °C 1560
560
Specific Heat Capacity, J/kg-K 560
900
Thermal Conductivity, W/m-K 7.1
130
Thermal Expansion, µm/m-K 9.6
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
120

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.5
Embodied Carbon, kg CO2/kg material 43
7.7
Embodied Energy, MJ/kg 710
140
Embodied Water, L/kg 310
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
3.1
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
24
Stiffness to Weight: Axial, points 13
16
Stiffness to Weight: Bending, points 35
55
Strength to Weight: Axial, points 63
12
Strength to Weight: Bending, points 50
20
Thermal Diffusivity, mm2/s 2.9
58
Thermal Shock Resistance, points 72
5.2

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
85 to 88.9
Beryllium (Be), % 0
0 to 0.00030
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.8
Magnesium (Mg), % 0
0.1 to 0.5
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
11 to 13
Titanium (Ti), % 87.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0 to 0.4
0 to 0.15