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7049A Aluminum vs. 2219 Aluminum

Both 7049A aluminum and 2219 aluminum are aluminum alloys. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is 7049A aluminum and the bottom bar is 2219 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
72
Elongation at Break, % 5.0 to 5.7
2.2 to 20
Fatigue Strength, MPa 180
90 to 130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 27
27
Shear Strength, MPa 340 to 350
110 to 280
Tensile Strength: Ultimate (UTS), MPa 580 to 590
180 to 480
Tensile Strength: Yield (Proof), MPa 500 to 530
88 to 390

Thermal Properties

Latent Heat of Fusion, J/g 370
390
Maximum Temperature: Mechanical, °C 200
230
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 430
540
Specific Heat Capacity, J/kg-K 850
870
Thermal Conductivity, W/m-K 130
110 to 170
Thermal Expansion, µm/m-K 24
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
28 to 44
Electrical Conductivity: Equal Weight (Specific), % IACS 120
81 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 10
11
Density, g/cm3 3.1
3.1
Embodied Carbon, kg CO2/kg material 8.2
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1100
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28 to 32
9.6 to 60
Resilience: Unit (Modulus of Resilience), kJ/m3 1800 to 1990
54 to 1060
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 44
44
Strength to Weight: Axial, points 52 to 53
16 to 43
Strength to Weight: Bending, points 50 to 51
23 to 44
Thermal Diffusivity, mm2/s 50
42 to 63
Thermal Shock Resistance, points 25
8.2 to 22

Alloy Composition


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Aluminum (Al), % 84.6 to 89.5
91.5 to 93.8
Chromium (Cr), % 0.050 to 0.25
0
Copper (Cu), % 1.2 to 1.9
5.8 to 6.8
Iron (Fe), % 0 to 0.5
0 to 0.3
Magnesium (Mg), % 2.1 to 3.1
0 to 0.020
Manganese (Mn), % 0 to 0.5
0.2 to 0.4
Silicon (Si), % 0 to 0.4
0 to 0.2
Titanium (Ti), % 0 to 0.25
0.020 to 0.1
Vanadium (V), % 0
0.050 to 0.15
Zinc (Zn), % 7.2 to 8.4
0 to 0.1
Zirconium (Zr), % 0 to 0.25
0.1 to 0.25
Residuals, % 0 to 0.15
0 to 0.15

Comparable Variants