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354.0 Aluminum vs. Grade 31 Titanium

354.0 aluminum belongs to the aluminum alloys classification, while grade 31 titanium belongs to the titanium alloys. There are 28 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 354.0 aluminum and the bottom bar is grade 31 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 2.4 to 3.0
20
Fatigue Strength, MPa 92 to 120
300
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 360 to 380
510
Tensile Strength: Yield (Proof), MPa 280 to 310
450

Thermal Properties

Latent Heat of Fusion, J/g 530
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 600
1660
Melting Onset (Solidus), °C 550
1610
Specific Heat Capacity, J/kg-K 900
540
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 21
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
6.9

Otherwise Unclassified Properties

Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 7.8
36
Embodied Energy, MJ/kg 150
600
Embodied Water, L/kg 1070
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.6 to 9.8
99
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 670
940
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
35
Strength to Weight: Axial, points 37 to 39
32
Strength to Weight: Bending, points 42 to 44
32
Thermal Diffusivity, mm2/s 52
8.5
Thermal Shock Resistance, points 17 to 18
39

Alloy Composition


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Aluminum (Al), % 87.3 to 89.4
0
Carbon (C), % 0
0 to 0.080
Cobalt (Co), % 0
0.2 to 0.8
Copper (Cu), % 1.6 to 2.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.3
Magnesium (Mg), % 0.4 to 0.6
0
Manganese (Mn), % 0 to 0.1
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.35
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 8.6 to 9.4
0
Titanium (Ti), % 0 to 0.2
97.9 to 99.76
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0 to 0.4