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2011 Aluminum vs. 7175 Aluminum

Both 2011 aluminum and 7175 aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common.

For each property being compared, the top bar is 2011 aluminum and the bottom bar is 7175 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 8.5 to 18
3.8 to 5.9
Fatigue Strength, MPa 74 to 120
150 to 180
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
26
Shear Strength, MPa 190 to 250
290 to 330
Tensile Strength: Ultimate (UTS), MPa 310 to 420
520 to 570
Tensile Strength: Yield (Proof), MPa 140 to 310
430 to 490

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 540
480
Specific Heat Capacity, J/kg-K 870
870
Thermal Conductivity, W/m-K 140 to 170
140
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35 to 45
33
Electrical Conductivity: Equal Weight (Specific), % IACS 100 to 130
99

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 3.1
3.0
Embodied Carbon, kg CO2/kg material 7.9
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 52
18 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 680
1310 to 1730
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 44
46
Strength to Weight: Axial, points 27 to 37
48 to 52
Strength to Weight: Bending, points 32 to 40
48 to 51
Thermal Diffusivity, mm2/s 51 to 64
53
Thermal Shock Resistance, points 14 to 19
23 to 25

Alloy Composition


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Aluminum (Al), % 91.3 to 94.6
88 to 91.4
Bismuth (Bi), % 0.2 to 0.6
0
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 5.0 to 6.0
1.2 to 2.0
Iron (Fe), % 0 to 0.7
0 to 0.2
Lead (Pb), % 0.2 to 0.6
0
Magnesium (Mg), % 0
2.1 to 2.9
Manganese (Mn), % 0
0 to 0.1
Silicon (Si), % 0 to 0.4
0 to 0.15
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.3
5.1 to 6.1
Residuals, % 0 to 0.15
0 to 0.15