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2030 Aluminum vs. 7129 Aluminum

Both 2030 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 2030 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, % 5.6 to 8.0
9.0 to 9.1
Fatigue Strength, MPa 91 to 110
150 to 190
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 220 to 250
250 to 260
Tensile Strength: Ultimate (UTS), MPa 370 to 420
430
Tensile Strength: Yield (Proof), MPa 240 to 270
380 to 390

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 190
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 130
150
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
40
Electrical Conductivity: Equal Weight (Specific), % IACS 99
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 3.1
2.9
Embodied Carbon, kg CO2/kg material 8.0
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 26
37 to 38
Resilience: Unit (Modulus of Resilience), kJ/m3 390 to 530
1050 to 1090
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
47
Strength to Weight: Axial, points 33 to 38
41
Strength to Weight: Bending, points 37 to 40
43 to 44
Thermal Diffusivity, mm2/s 50
58
Thermal Shock Resistance, points 16 to 19
19

Alloy Composition

Aluminum (Al), % 88.9 to 95.2
91 to 94
Bismuth (Bi), % 0 to 0.2
0
Chromium (Cr), % 0 to 0.1
0 to 0.1
Copper (Cu), % 3.3 to 4.5
0.5 to 0.9
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.7
0 to 0.3
Lead (Pb), % 0.8 to 1.5
0
Magnesium (Mg), % 0.5 to 1.3
1.3 to 2.0
Manganese (Mn), % 0.2 to 1.0
0 to 0.1
Silicon (Si), % 0 to 0.8
0 to 0.15
Titanium (Ti), % 0 to 0.2
0 to 0.050
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.5
4.2 to 5.2
Residuals, % 0
0 to 0.15