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7022 Aluminum vs. AWS ERTi-7

7022 aluminum belongs to the aluminum alloys classification, while AWS ERTi-7 belongs to the titanium alloys. There are 28 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 7022 aluminum and the bottom bar is AWS ERTi-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 6.3 to 8.0
20
Fatigue Strength, MPa 140 to 170
190
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 490 to 540
340
Tensile Strength: Yield (Proof), MPa 390 to 460
280

Thermal Properties

Latent Heat of Fusion, J/g 380
420
Maximum Temperature: Mechanical, °C 200
320
Melting Completion (Liquidus), °C 640
1670
Melting Onset (Solidus), °C 480
1620
Specific Heat Capacity, J/kg-K 870
540
Thermal Conductivity, W/m-K 140
21
Thermal Expansion, µm/m-K 24
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 65
7.3

Otherwise Unclassified Properties

Density, g/cm3 2.9
4.5
Embodied Carbon, kg CO2/kg material 8.5
47
Embodied Energy, MJ/kg 150
800
Embodied Water, L/kg 1130
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 40
64
Resilience: Unit (Modulus of Resilience), kJ/m3 1100 to 1500
360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
35
Strength to Weight: Axial, points 47 to 51
21
Strength to Weight: Bending, points 47 to 50
24
Thermal Diffusivity, mm2/s 54
8.8
Thermal Shock Resistance, points 21 to 23
26

Alloy Composition

Aluminum (Al), % 87.9 to 92.4
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.1 to 0.3
0
Copper (Cu), % 0.5 to 1.0
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 0 to 0.5
0 to 0.12
Magnesium (Mg), % 2.6 to 3.7
0
Manganese (Mn), % 0.1 to 0.4
0
Nitrogen (N), % 0
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Palladium (Pd), % 0
0.12 to 0.25
Silicon (Si), % 0 to 0.5
0
Titanium (Ti), % 0 to 0.2
99.417 to 99.8
Zinc (Zn), % 4.3 to 5.2
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0