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Grade 1 Titanium vs. 7003 Aluminum

Grade 1 titanium belongs to the titanium alloys classification, while 7003 aluminum belongs to the aluminum 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 grade 1 titanium and the bottom bar is 7003 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 28
11
Fatigue Strength, MPa 170
130 to 150
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 39
26
Shear Strength, MPa 200
210 to 230
Tensile Strength: Ultimate (UTS), MPa 310
350 to 390
Tensile Strength: Yield (Proof), MPa 220
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 420
380
Maximum Temperature: Mechanical, °C 320
200
Melting Completion (Liquidus), °C 1660
630
Melting Onset (Solidus), °C 1610
510
Specific Heat Capacity, J/kg-K 540
870
Thermal Conductivity, W/m-K 20
150
Thermal Expansion, µm/m-K 8.8
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
36
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
110

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
37 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 230
630 to 710
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
47
Strength to Weight: Axial, points 19
33 to 37
Strength to Weight: Bending, points 23
37 to 40
Thermal Diffusivity, mm2/s 8.2
59
Thermal Shock Resistance, points 24
15 to 17

Alloy Composition

Aluminum (Al), % 0
90.6 to 94.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0
0 to 0.2
Copper (Cu), % 0
0 to 0.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.35
Magnesium (Mg), % 0
0.5 to 1.0
Manganese (Mn), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Silicon (Si), % 0
0 to 0.3
Titanium (Ti), % 99.095 to 100
0 to 0.2
Zinc (Zn), % 0
5.0 to 6.5
Zirconium (Zr), % 0
0.050 to 0.25
Residuals, % 0
0 to 0.15