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2007 Aluminum vs. Grade 32 Titanium

2007 aluminum belongs to the aluminum alloys classification, while grade 32 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 2007 aluminum and the bottom bar is grade 32 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 5.6 to 8.0
11
Fatigue Strength, MPa 91 to 110
390
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
40
Shear Strength, MPa 220 to 250
460
Tensile Strength: Ultimate (UTS), MPa 370 to 420
770
Tensile Strength: Yield (Proof), MPa 240 to 270
670

Thermal Properties

Latent Heat of Fusion, J/g 390
410
Maximum Temperature: Mechanical, °C 190
310
Melting Completion (Liquidus), °C 640
1610
Melting Onset (Solidus), °C 510
1560
Specific Heat Capacity, J/kg-K 870
550
Thermal Conductivity, W/m-K 130
7.5
Thermal Expansion, µm/m-K 23
8.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
38
Density, g/cm3 3.1
4.5
Embodied Carbon, kg CO2/kg material 8.0
32
Embodied Energy, MJ/kg 150
530
Embodied Water, L/kg 1130
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 26
83
Resilience: Unit (Modulus of Resilience), kJ/m3 390 to 530
2100
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 44
35
Strength to Weight: Axial, points 33 to 38
47
Strength to Weight: Bending, points 37 to 40
41
Thermal Diffusivity, mm2/s 48
3.0
Thermal Shock Resistance, points 16 to 19
63

Alloy Composition

Aluminum (Al), % 87.5 to 95
4.5 to 5.5
Bismuth (Bi), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.3 to 4.6
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.8
0 to 0.25
Lead (Pb), % 0.8 to 1.5
0
Magnesium (Mg), % 0.4 to 1.8
0
Manganese (Mn), % 0.5 to 1.0
0
Molybdenum (Mo), % 0
0.6 to 1.2
Nickel (Ni), % 0 to 0.2
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.11
Silicon (Si), % 0 to 0.8
0.060 to 0.14
Tin (Sn), % 0 to 0.2
0.6 to 1.4
Titanium (Ti), % 0 to 0.2
88.1 to 93
Vanadium (V), % 0
0.6 to 1.4
Zinc (Zn), % 0 to 0.8
0
Zirconium (Zr), % 0
0.6 to 1.4
Residuals, % 0
0 to 0.4