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238.0 Aluminum vs. Grade 7 Titanium

238.0 aluminum belongs to the aluminum alloys classification, while grade 7 titanium belongs to the titanium 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 238.0 aluminum and the bottom bar is grade 7 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
110
Elongation at Break, % 1.5
24
Fatigue Strength, MPa 110
250
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 28
38
Tensile Strength: Ultimate (UTS), MPa 210
420
Tensile Strength: Yield (Proof), MPa 170
340

Thermal Properties

Latent Heat of Fusion, J/g 430
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 600
1660
Melting Onset (Solidus), °C 510
1610
Specific Heat Capacity, J/kg-K 840
540
Thermal Conductivity, W/m-K 100
22
Thermal Expansion, µm/m-K 21
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 67
7.2

Otherwise Unclassified Properties

Density, g/cm3 3.4
4.5
Embodied Carbon, kg CO2/kg material 7.4
47
Embodied Energy, MJ/kg 140
800
Embodied Water, L/kg 1040
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
95
Resilience: Unit (Modulus of Resilience), kJ/m3 180
560
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 42
35
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 23
28
Thermal Diffusivity, mm2/s 37
8.9
Thermal Shock Resistance, points 9.1
31

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 9.5 to 10.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 1.0 to 1.5
0 to 0.3
Magnesium (Mg), % 0 to 0.25
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.12 to 0.25
Silicon (Si), % 3.6 to 4.4
0
Titanium (Ti), % 0
98.7 to 99.88
Zinc (Zn), % 1.0 to 1.5
0
Residuals, % 0
0 to 0.4