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354.0 Aluminum vs. Titanium 4-4-2

354.0 aluminum belongs to the aluminum alloys classification, while titanium 4-4-2 belongs to the titanium alloys. There are 27 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 354.0 aluminum and the bottom bar is titanium 4-4-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 2.4 to 3.0
10
Fatigue Strength, MPa 92 to 120
590 to 620
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
42
Tensile Strength: Ultimate (UTS), MPa 360 to 380
1150 to 1250
Tensile Strength: Yield (Proof), MPa 280 to 310
1030 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 530
410
Maximum Temperature: Mechanical, °C 170
310
Melting Completion (Liquidus), °C 600
1610
Melting Onset (Solidus), °C 550
1560
Specific Heat Capacity, J/kg-K 900
540
Thermal Conductivity, W/m-K 130
6.7
Thermal Expansion, µm/m-K 21
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
39
Density, g/cm3 2.7
4.7
Embodied Carbon, kg CO2/kg material 7.8
30
Embodied Energy, MJ/kg 150
480
Embodied Water, L/kg 1070
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.6 to 9.8
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 670
4700 to 5160
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
34
Strength to Weight: Axial, points 37 to 39
68 to 74
Strength to Weight: Bending, points 42 to 44
52 to 55
Thermal Diffusivity, mm2/s 52
2.6
Thermal Shock Resistance, points 17 to 18
86 to 93

Alloy Composition


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Aluminum (Al), % 87.3 to 89.4
3.0 to 5.0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 1.6 to 2.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.2
Magnesium (Mg), % 0.4 to 0.6
0
Manganese (Mn), % 0 to 0.1
0
Molybdenum (Mo), % 0
3.0 to 5.0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Silicon (Si), % 8.6 to 9.4
0.3 to 0.7
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0 to 0.2
85.8 to 92.2
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0 to 0.4