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1070A Aluminum vs. 7049A Aluminum

Both 1070A aluminum and 7049A aluminum are aluminum alloys. They have 87% 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 7049A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
71
Elongation at Break, % 2.3 to 33
5.0 to 5.7
Fatigue Strength, MPa 17 to 51
180
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
27
Shear Strength, MPa 44 to 81
340 to 350
Tensile Strength: Ultimate (UTS), MPa 68 to 140
580 to 590
Tensile Strength: Yield (Proof), MPa 17 to 120
500 to 530

Thermal Properties

Latent Heat of Fusion, J/g 400
370
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 640
430
Specific Heat Capacity, J/kg-K 900
850
Thermal Conductivity, W/m-K 230
130
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
10
Density, g/cm3 2.7
3.1
Embodied Carbon, kg CO2/kg material 8.2
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1200
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.0 to 18
28 to 32
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 100
1800 to 1990
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
44
Strength to Weight: Axial, points 7.0 to 14
52 to 53
Strength to Weight: Bending, points 14 to 22
50 to 51
Thermal Diffusivity, mm2/s 94
50
Thermal Shock Resistance, points 3.1 to 6.3
25

Alloy Composition


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Aluminum (Al), % 99.7 to 100
84.6 to 89.5
Chromium (Cr), % 0
0.050 to 0.25
Copper (Cu), % 0 to 0.030
1.2 to 1.9
Iron (Fe), % 0 to 0.25
0 to 0.5
Magnesium (Mg), % 0 to 0.030
2.1 to 3.1
Manganese (Mn), % 0 to 0.030
0 to 0.5
Silicon (Si), % 0 to 0.2
0 to 0.4
Titanium (Ti), % 0 to 0.030
0 to 0.25
Zinc (Zn), % 0 to 0.070
7.2 to 8.4
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15