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5021 Aluminum vs. AWS ERTi-7

5021 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 5021 aluminum and the bottom bar is AWS ERTi-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 1.1 to 3.4
20
Fatigue Strength, MPa 85 to 110
190
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 300 to 310
340
Tensile Strength: Yield (Proof), MPa 240 to 270
280

Thermal Properties

Latent Heat of Fusion, J/g 400
420
Maximum Temperature: Mechanical, °C 180
320
Melting Completion (Liquidus), °C 640
1670
Melting Onset (Solidus), °C 590
1620
Specific Heat Capacity, J/kg-K 900
540
Thermal Conductivity, W/m-K 140
21
Thermal Expansion, µm/m-K 23
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 120
7.3

Otherwise Unclassified Properties

Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 8.6
47
Embodied Energy, MJ/kg 150
800
Embodied Water, L/kg 1180
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1 to 10
64
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 550
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
35
Strength to Weight: Axial, points 30 to 32
21
Strength to Weight: Bending, points 37
24
Thermal Diffusivity, mm2/s 57
8.8
Thermal Shock Resistance, points 13 to 14
26

Alloy Composition

Aluminum (Al), % 95.2 to 97.7
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0 to 0.15
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 0 to 0.5
0 to 0.12
Magnesium (Mg), % 2.2 to 2.8
0
Manganese (Mn), % 0.1 to 0.5
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 0.4
0
Titanium (Ti), % 0
99.417 to 99.8
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0