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2017 Aluminum vs. 7050 Aluminum

Both 2017 aluminum and 7050 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is 2017 aluminum and the bottom bar is 7050 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 12 to 18
2.2 to 12
Fatigue Strength, MPa 90 to 130
130 to 210
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
26
Shear Strength, MPa 130 to 260
280 to 330
Tensile Strength: Ultimate (UTS), MPa 190 to 430
490 to 570
Tensile Strength: Yield (Proof), MPa 76 to 260
390 to 500

Thermal Properties

Latent Heat of Fusion, J/g 390
370
Maximum Temperature: Mechanical, °C 190
190
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 510
490
Specific Heat Capacity, J/kg-K 880
860
Thermal Conductivity, W/m-K 150
140
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
35
Electrical Conductivity: Equal Weight (Specific), % IACS 110
100

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
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 66
10 to 55
Resilience: Unit (Modulus of Resilience), kJ/m3 41 to 470
1110 to 1760
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
45
Strength to Weight: Axial, points 17 to 40
45 to 51
Strength to Weight: Bending, points 24 to 42
45 to 50
Thermal Diffusivity, mm2/s 56
54
Thermal Shock Resistance, points 7.9 to 18
21 to 25

Alloy Composition

Aluminum (Al), % 91.6 to 95.5
87.3 to 92.1
Chromium (Cr), % 0 to 0.1
0 to 0.040
Copper (Cu), % 3.5 to 4.5
2.0 to 2.6
Iron (Fe), % 0 to 0.7
0 to 0.15
Magnesium (Mg), % 0.4 to 0.8
1.9 to 2.6
Manganese (Mn), % 0.4 to 1.0
0 to 0.1
Silicon (Si), % 0.2 to 0.8
0 to 0.12
Titanium (Ti), % 0 to 0.15
0 to 0.060
Zinc (Zn), % 0 to 0.25
5.7 to 6.7
Zirconium (Zr), % 0
0.080 to 0.15
Residuals, % 0
0 to 0.15