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7049 Aluminum vs. 2117 Aluminum

Both 7049 aluminum and 2117 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 7049 aluminum and the bottom bar is 2117 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
70
Elastic (Young's, Tensile) Modulus, GPa 70
71
Elongation at Break, % 6.2 to 7.0
26
Fatigue Strength, MPa 160 to 170
95
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 27
27
Shear Strength, MPa 300 to 310
200
Tensile Strength: Ultimate (UTS), MPa 510 to 530
300
Tensile Strength: Yield (Proof), MPa 420 to 450
170

Thermal Properties

Latent Heat of Fusion, J/g 370
400
Maximum Temperature: Mechanical, °C 180
220
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 480
550
Specific Heat Capacity, J/kg-K 860
880
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
40
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 3.1
3.0
Embodied Carbon, kg CO2/kg material 8.1
8.2
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1110
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
64
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
47
Strength to Weight: Axial, points 46 to 47
28
Strength to Weight: Bending, points 46 to 47
33
Thermal Diffusivity, mm2/s 51
59
Thermal Shock Resistance, points 22 to 23
12

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
91 to 97.6
Chromium (Cr), % 0.1 to 0.22
0 to 0.1
Copper (Cu), % 1.2 to 1.9
2.2 to 4.5
Iron (Fe), % 0 to 0.35
0 to 0.7
Magnesium (Mg), % 2.0 to 2.9
0.2 to 1.0
Manganese (Mn), % 0 to 0.2
0.4 to 1.0
Silicon (Si), % 0 to 0.25
0.2 to 0.8
Titanium (Ti), % 0 to 0.1
0 to 0.25
Zinc (Zn), % 7.2 to 8.2
0 to 0.25
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15