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A242.0 Aluminum vs. 7049A Aluminum

Both A242.0 aluminum and 7049A aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is A242.0 aluminum and the bottom bar is 7049A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
71
Elongation at Break, % 1.6
5.0 to 5.7
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 220
580 to 590

Thermal Properties

Latent Heat of Fusion, J/g 390
370
Maximum Temperature: Mechanical, °C 210
200
Melting Completion (Liquidus), °C 680
640
Melting Onset (Solidus), °C 550
430
Specific Heat Capacity, J/kg-K 870
850
Thermal Conductivity, W/m-K 140
130
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 12
10
Density, g/cm3 3.1
3.1
Embodied Carbon, kg CO2/kg material 8.3
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1130
1100

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
44
Strength to Weight: Axial, points 20
52 to 53
Strength to Weight: Bending, points 26
50 to 51
Thermal Diffusivity, mm2/s 52
50
Thermal Shock Resistance, points 9.3
25

Alloy Composition

Aluminum (Al), % 89.3 to 93.1
84.6 to 89.5
Chromium (Cr), % 0.15 to 0.25
0.050 to 0.25
Copper (Cu), % 3.7 to 4.5
1.2 to 1.9
Iron (Fe), % 0 to 0.8
0 to 0.5
Magnesium (Mg), % 1.2 to 1.7
2.1 to 3.1
Manganese (Mn), % 0 to 0.1
0 to 0.5
Nickel (Ni), % 1.8 to 2.3
0
Silicon (Si), % 0 to 0.6
0 to 0.4
Titanium (Ti), % 0.070 to 0.2
0 to 0.25
Zinc (Zn), % 0 to 0.1
7.2 to 8.4
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15