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Grade 12 Titanium vs. 240.0 Aluminum

Grade 12 titanium belongs to the titanium alloys classification, while 240.0 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 12 titanium and the bottom bar is 240.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
72
Elongation at Break, % 21
1.0
Fatigue Strength, MPa 280
140
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
27
Tensile Strength: Ultimate (UTS), MPa 530
240
Tensile Strength: Yield (Proof), MPa 410
200

Thermal Properties

Latent Heat of Fusion, J/g 420
380
Maximum Temperature: Mechanical, °C 320
180
Melting Completion (Liquidus), °C 1660
600
Melting Onset (Solidus), °C 1610
520
Specific Heat Capacity, J/kg-K 540
860
Thermal Conductivity, W/m-K 21
96
Thermal Expansion, µm/m-K 9.6
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
23
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
65

Otherwise Unclassified Properties

Base Metal Price, % relative 37
12
Density, g/cm3 4.5
3.2
Embodied Carbon, kg CO2/kg material 31
8.7
Embodied Energy, MJ/kg 500
150
Embodied Water, L/kg 110
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
2.2
Resilience: Unit (Modulus of Resilience), kJ/m3 770
280
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
43
Strength to Weight: Axial, points 32
20
Strength to Weight: Bending, points 32
26
Thermal Diffusivity, mm2/s 8.5
35
Thermal Shock Resistance, points 37
11

Alloy Composition

Aluminum (Al), % 0
81.7 to 86.9
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
7.0 to 9.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.5
Magnesium (Mg), % 0
5.5 to 6.5
Manganese (Mn), % 0
0.3 to 0.7
Molybdenum (Mo), % 0.2 to 0.4
0
Nickel (Ni), % 0.6 to 0.9
0.3 to 0.7
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Silicon (Si), % 0
0 to 0.5
Titanium (Ti), % 97.6 to 99.2
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15