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2014A Aluminum vs. 7129 Aluminum

Both 2014A 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 2014A aluminum and the bottom bar is 7129 Aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
69
Elongation at Break, % 6.2 to 16
9.0 to 9.1
Fatigue Strength, MPa 93 to 150
150 to 190
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 130 to 290
250 to 260
Tensile Strength: Ultimate (UTS), MPa 210 to 490
430
Tensile Strength: Yield (Proof), MPa 110 to 430
380 to 390

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 210
180
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 510
510
Specific Heat Capacity, J/kg-K 870
880
Thermal Conductivity, W/m-K 150
150
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
40
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 3.0
2.9
Embodied Carbon, kg CO2/kg material 8.1
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 49
37 to 38
Resilience: Unit (Modulus of Resilience), kJ/m3 85 to 1300
1050 to 1090
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
47
Strength to Weight: Axial, points 19 to 45
41
Strength to Weight: Bending, points 26 to 46
43 to 44
Thermal Diffusivity, mm2/s 55
58
Thermal Shock Resistance, points 9.0 to 22
19

Alloy Composition

Aluminum (Al), % 90.8 to 95
91 to 94
Chromium (Cr), % 0 to 0.1
0 to 0.1
Copper (Cu), % 3.9 to 5.0
0.5 to 0.9
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.5
0 to 0.3
Magnesium (Mg), % 0.2 to 0.8
1.3 to 2.0
Manganese (Mn), % 0.4 to 1.2
0 to 0.1
Nickel (Ni), % 0 to 0.1
0
Silicon (Si), % 0.5 to 0.9
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
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0
0 to 0.15

Comparable Variants