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7129 Aluminum vs. 2011 Aluminum

Both 7129 Aluminum and 2011 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is 7129 Aluminum and the bottom bar is 2011 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
71
Elongation at Break, % 9.0 to 9.1
8.5 to 18
Fatigue Strength, MPa 150 to 190
74 to 120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 250 to 260
190 to 250
Tensile Strength: Ultimate (UTS), MPa 430
310 to 420
Tensile Strength: Yield (Proof), MPa 380 to 390
140 to 310

Thermal Properties

Latent Heat of Fusion, J/g 380
390
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 510
540
Specific Heat Capacity, J/kg-K 880
870
Thermal Conductivity, W/m-K 150
140 to 170
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
35 to 45
Electrical Conductivity: Equal Weight (Specific), % IACS 120
100 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.9
3.1
Embodied Carbon, kg CO2/kg material 8.3
7.9
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 38
29 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1090
140 to 680
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
44
Strength to Weight: Axial, points 41
27 to 37
Strength to Weight: Bending, points 43 to 44
32 to 40
Thermal Diffusivity, mm2/s 58
51 to 64
Thermal Shock Resistance, points 19
14 to 19

Alloy Composition

Aluminum (Al), % 91 to 94
91.3 to 94.6
Bismuth (Bi), % 0
0.2 to 0.6
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0.5 to 0.9
5.0 to 6.0
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.7
Lead (Pb), % 0
0.2 to 0.6
Magnesium (Mg), % 1.3 to 2.0
0
Manganese (Mn), % 0 to 0.1
0
Silicon (Si), % 0 to 0.15
0 to 0.4
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 4.2 to 5.2
0 to 0.3
Residuals, % 0
0 to 0.15

Comparable Variants