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2014 Aluminum vs. Grade 38 Titanium

2014 aluminum belongs to the aluminum alloys classification, while grade 38 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 2014 aluminum and the bottom bar is grade 38 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
110
Elongation at Break, % 1.5 to 16
11
Fatigue Strength, MPa 90 to 160
530
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
40
Shear Strength, MPa 130 to 290
600
Tensile Strength: Ultimate (UTS), MPa 190 to 500
1000
Tensile Strength: Yield (Proof), MPa 100 to 440
910

Thermal Properties

Latent Heat of Fusion, J/g 400
410
Maximum Temperature: Mechanical, °C 210
330
Melting Completion (Liquidus), °C 630
1620
Melting Onset (Solidus), °C 510
1570
Specific Heat Capacity, J/kg-K 870
550
Thermal Conductivity, W/m-K 150
8.0
Thermal Expansion, µm/m-K 23
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
36
Density, g/cm3 3.0
4.5
Embodied Carbon, kg CO2/kg material 8.1
35
Embodied Energy, MJ/kg 150
560
Embodied Water, L/kg 1130
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.6 to 56
110
Resilience: Unit (Modulus of Resilience), kJ/m3 76 to 1330
3840
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
35
Strength to Weight: Axial, points 18 to 46
62
Strength to Weight: Bending, points 25 to 46
49
Thermal Diffusivity, mm2/s 58
3.2
Thermal Shock Resistance, points 8.4 to 22
72

Alloy Composition

Aluminum (Al), % 90.4 to 95
3.5 to 4.5
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.9 to 5.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.7
1.2 to 1.8
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.4 to 1.2
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0.2 to 0.3
Silicon (Si), % 0.5 to 1.2
0
Titanium (Ti), % 0 to 0.15
89.9 to 93.1
Vanadium (V), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0
0 to 0.4