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7003 Aluminum vs. Grade C-3 Titanium

7003 aluminum belongs to the aluminum alloys classification, while grade C-3 titanium belongs to the titanium alloys. There are 29 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 7003 aluminum and the bottom bar is grade C-3 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 11
13
Fatigue Strength, MPa 130 to 150
260
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 350 to 390
500
Tensile Strength: Yield (Proof), MPa 300 to 310
430

Thermal Properties

Latent Heat of Fusion, J/g 380
420
Maximum Temperature: Mechanical, °C 200
320
Melting Completion (Liquidus), °C 630
1660
Melting Onset (Solidus), °C 510
1610
Specific Heat Capacity, J/kg-K 870
540
Thermal Conductivity, W/m-K 150
21
Thermal Expansion, µm/m-K 24
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 2.9
4.5
Embodied Carbon, kg CO2/kg material 8.1
31
Embodied Energy, MJ/kg 150
510
Embodied Water, L/kg 1140
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 41
65
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 710
880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
35
Strength to Weight: Axial, points 33 to 37
31
Strength to Weight: Bending, points 37 to 40
31
Thermal Diffusivity, mm2/s 59
8.5
Thermal Shock Resistance, points 15 to 17
39

Alloy Composition

Aluminum (Al), % 90.6 to 94.5
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.2
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.35
0 to 0.25
Magnesium (Mg), % 0.5 to 1.0
0
Manganese (Mn), % 0 to 0.3
0
Nickel (Ni), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.4
Silicon (Si), % 0 to 0.3
0
Titanium (Ti), % 0 to 0.2
98.8 to 100
Zinc (Zn), % 5.0 to 6.5
0
Zirconium (Zr), % 0.050 to 0.25
0
Residuals, % 0
0 to 0.4