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Grade 18 Titanium vs. 852.0 Aluminum

Grade 18 titanium belongs to the titanium alloys classification, while 852.0 aluminum belongs to the aluminum alloys. There are 29 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 18 titanium and the bottom bar is 852.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 11 to 17
3.4
Fatigue Strength, MPa 330 to 480
73
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Shear Strength, MPa 420 to 590
130
Tensile Strength: Ultimate (UTS), MPa 690 to 980
200
Tensile Strength: Yield (Proof), MPa 540 to 810
150

Thermal Properties

Latent Heat of Fusion, J/g 410
370
Maximum Temperature: Mechanical, °C 330
190
Melting Completion (Liquidus), °C 1640
640
Melting Onset (Solidus), °C 1590
210
Specific Heat Capacity, J/kg-K 550
840
Thermal Conductivity, W/m-K 8.3
180
Thermal Expansion, µm/m-K 9.9
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
45
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
130

Otherwise Unclassified Properties

Density, g/cm3 4.5
3.2
Embodied Carbon, kg CO2/kg material 41
8.5
Embodied Energy, MJ/kg 670
160
Embodied Water, L/kg 270
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
6.2
Resilience: Unit (Modulus of Resilience), kJ/m3 1380 to 3110
160
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
43
Strength to Weight: Axial, points 43 to 61
17
Strength to Weight: Bending, points 39 to 49
24
Thermal Diffusivity, mm2/s 3.4
65
Thermal Shock Resistance, points 47 to 67
8.7

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
86.6 to 91.3
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
1.7 to 2.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 0.7
Magnesium (Mg), % 0
0.6 to 0.9
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
0.9 to 1.5
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
0 to 0.4
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 92.5 to 95.5
0 to 0.2
Vanadium (V), % 2.0 to 3.0
0
Residuals, % 0
0 to 0.3