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7129 Aluminum vs. 1080A Aluminum

Both 7129 Aluminum and 1080A aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 7129 Aluminum and the bottom bar is 1080A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
68
Elongation at Break, % 9.0 to 9.1
2.3 to 34
Fatigue Strength, MPa 150 to 190
18 to 50
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 250 to 260
49 to 81
Tensile Strength: Ultimate (UTS), MPa 430
74 to 140
Tensile Strength: Yield (Proof), MPa 380 to 390
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 380
400
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 510
640
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 150
230
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
62
Electrical Conductivity: Equal Weight (Specific), % IACS 120
200

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 38
3.1 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1090
2.1 to 100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 41
7.6 to 15
Strength to Weight: Bending, points 43 to 44
14 to 22
Thermal Diffusivity, mm2/s 58
94
Thermal Shock Resistance, points 19
3.3 to 6.4

Alloy Composition

Aluminum (Al), % 91 to 94
99.8 to 100
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0.5 to 0.9
0 to 0.030
Gallium (Ga), % 0 to 0.030
0 to 0.030
Iron (Fe), % 0 to 0.3
0 to 0.15
Magnesium (Mg), % 1.3 to 2.0
0 to 0.020
Manganese (Mn), % 0 to 0.1
0 to 0.020
Silicon (Si), % 0 to 0.15
0 to 0.15
Titanium (Ti), % 0 to 0.050
0 to 0.020
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 4.2 to 5.2
0 to 0.060
Residuals, % 0 to 0.15
0