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1070A Aluminum vs. 7129 Aluminum

Both 1070A aluminum and 7129 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 1070A aluminum and the bottom bar is 7129 Aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
69
Elongation at Break, % 2.3 to 33
9.0 to 9.1
Fatigue Strength, MPa 17 to 51
150 to 190
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 44 to 81
250 to 260
Tensile Strength: Ultimate (UTS), MPa 68 to 140
430
Tensile Strength: Yield (Proof), MPa 17 to 120
380 to 390

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
40
Electrical Conductivity: Equal Weight (Specific), % IACS 200
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
9.5
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.2
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1200
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.0 to 18
37 to 38
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 100
1050 to 1090
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 7.0 to 14
41
Strength to Weight: Bending, points 14 to 22
43 to 44
Thermal Diffusivity, mm2/s 94
58
Thermal Shock Resistance, points 3.1 to 6.3
19

Alloy Composition


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Aluminum (Al), % 99.7 to 100
91 to 94
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.030
0.5 to 0.9
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.25
0 to 0.3
Magnesium (Mg), % 0 to 0.030
1.3 to 2.0
Manganese (Mn), % 0 to 0.030
0 to 0.1
Silicon (Si), % 0 to 0.2
0 to 0.15
Titanium (Ti), % 0 to 0.030
0 to 0.050
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.070
4.2 to 5.2
Residuals, % 0
0 to 0.15