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2017 Aluminum vs. 7049A Aluminum

Both 2017 aluminum and 7049A aluminum are aluminum alloys. They have a moderately high 90% of their average alloy composition in common.

For each property being compared, the top bar is 2017 aluminum and the bottom bar is 7049A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
71
Elongation at Break, % 12 to 18
5.0 to 5.7
Fatigue Strength, MPa 90 to 130
180
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
27
Shear Strength, MPa 130 to 260
340 to 350
Tensile Strength: Ultimate (UTS), MPa 190 to 430
580 to 590
Tensile Strength: Yield (Proof), MPa 76 to 260
500 to 530

Thermal Properties

Latent Heat of Fusion, J/g 390
370
Maximum Temperature: Mechanical, °C 190
200
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 510
430
Specific Heat Capacity, J/kg-K 880
850
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
40
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 3.0
3.1
Embodied Carbon, kg CO2/kg material 8.0
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 66
28 to 32
Resilience: Unit (Modulus of Resilience), kJ/m3 41 to 470
1800 to 1990
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
44
Strength to Weight: Axial, points 17 to 40
52 to 53
Strength to Weight: Bending, points 24 to 42
50 to 51
Thermal Diffusivity, mm2/s 56
50
Thermal Shock Resistance, points 7.9 to 18
25

Alloy Composition


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Aluminum (Al), % 91.6 to 95.5
84.6 to 89.5
Chromium (Cr), % 0 to 0.1
0.050 to 0.25
Copper (Cu), % 3.5 to 4.5
1.2 to 1.9
Iron (Fe), % 0 to 0.7
0 to 0.5
Magnesium (Mg), % 0.4 to 0.8
2.1 to 3.1
Manganese (Mn), % 0.4 to 1.0
0 to 0.5
Silicon (Si), % 0.2 to 0.8
0 to 0.4
Titanium (Ti), % 0 to 0.15
0 to 0.25
Zinc (Zn), % 0 to 0.25
7.2 to 8.4
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0 to 0.15
0 to 0.15