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4007 Aluminum vs. Grade 33 Titanium

4007 aluminum belongs to the aluminum alloys classification, while grade 33 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 4007 aluminum and the bottom bar is grade 33 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 5.1 to 23
23
Fatigue Strength, MPa 46 to 88
250
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
41
Shear Strength, MPa 80 to 90
240
Tensile Strength: Ultimate (UTS), MPa 130 to 160
390
Tensile Strength: Yield (Proof), MPa 50 to 120
350

Thermal Properties

Latent Heat of Fusion, J/g 410
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 650
1660
Melting Onset (Solidus), °C 590
1610
Specific Heat Capacity, J/kg-K 890
540
Thermal Conductivity, W/m-K 170
21
Thermal Expansion, µm/m-K 23
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
55
Density, g/cm3 2.8
4.5
Embodied Carbon, kg CO2/kg material 8.1
33
Embodied Energy, MJ/kg 150
530
Embodied Water, L/kg 1160
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.4 to 23
86
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 110
590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
35
Strength to Weight: Axial, points 12 to 15
24
Strength to Weight: Bending, points 20 to 23
26
Thermal Diffusivity, mm2/s 67
8.7
Thermal Shock Resistance, points 5.5 to 6.7
30

Alloy Composition

Aluminum (Al), % 94.1 to 97.6
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0.050 to 0.25
0.1 to 0.2
Cobalt (Co), % 0 to 0.050
0
Copper (Cu), % 0 to 0.2
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0.4 to 1.0
0 to 0.3
Magnesium (Mg), % 0 to 0.2
0
Manganese (Mn), % 0.8 to 1.5
0
Nickel (Ni), % 0.15 to 0.7
0.35 to 0.55
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.010 to 0.020
Ruthenium (Ru), % 0
0.020 to 0.040
Silicon (Si), % 1.0 to 1.7
0
Titanium (Ti), % 0 to 0.1
98.1 to 99.52
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.4