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2036 Aluminum vs. 7129 Aluminum

Both 2036 aluminum and 7129 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 2036 aluminum and the bottom bar is 7129 Aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 24
9.0 to 9.1
Fatigue Strength, MPa 130
150 to 190
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 210
250 to 260
Tensile Strength: Ultimate (UTS), MPa 340
430
Tensile Strength: Yield (Proof), MPa 200
380 to 390

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 650
630
Melting Onset (Solidus), °C 560
510
Specific Heat Capacity, J/kg-K 890
880
Thermal Conductivity, W/m-K 160
150
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
40
Electrical Conductivity: Equal Weight (Specific), % IACS 130
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 2.9
2.9
Embodied Carbon, kg CO2/kg material 8.1
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1160
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
37 to 38
Resilience: Unit (Modulus of Resilience), kJ/m3 270
1050 to 1090
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 48
47
Strength to Weight: Axial, points 33
41
Strength to Weight: Bending, points 38
43 to 44
Thermal Diffusivity, mm2/s 62
58
Thermal Shock Resistance, points 15
19

Alloy Composition

Aluminum (Al), % 94.4 to 97.4
91 to 94
Chromium (Cr), % 0 to 0.1
0 to 0.1
Copper (Cu), % 2.2 to 3.0
0.5 to 0.9
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.5
0 to 0.3
Magnesium (Mg), % 0.3 to 0.6
1.3 to 2.0
Manganese (Mn), % 0.1 to 0.4
0 to 0.1
Silicon (Si), % 0 to 0.5
0 to 0.15
Titanium (Ti), % 0 to 0.15
0 to 0.050
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.25
4.2 to 5.2
Residuals, % 0 to 0.15
0 to 0.15