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A242.0 Aluminum vs. 7204 Aluminum

Both A242.0 aluminum and 7204 aluminum are aluminum alloys. They have a moderately high 94% 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 7204 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
70
Elongation at Break, % 1.6
11 to 13
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Tensile Strength: Ultimate (UTS), MPa 220
220 to 380

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 210
210
Melting Completion (Liquidus), °C 680
640
Melting Onset (Solidus), °C 550
520
Specific Heat Capacity, J/kg-K 870
880
Thermal Conductivity, W/m-K 140
150
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
39
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 3.1
2.9
Embodied Carbon, kg CO2/kg material 8.3
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1130
1140

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
47
Strength to Weight: Axial, points 20
21 to 36
Strength to Weight: Bending, points 26
28 to 40
Thermal Diffusivity, mm2/s 52
58
Thermal Shock Resistance, points 9.3
9.4 to 16

Alloy Composition


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Aluminum (Al), % 89.3 to 93.1
90.5 to 94.8
Chromium (Cr), % 0.15 to 0.25
0 to 0.3
Copper (Cu), % 3.7 to 4.5
0 to 0.2
Iron (Fe), % 0 to 0.8
0 to 0.35
Magnesium (Mg), % 1.2 to 1.7
1.0 to 2.0
Manganese (Mn), % 0 to 0.1
0.2 to 0.7
Nickel (Ni), % 1.8 to 2.3
0
Silicon (Si), % 0 to 0.6
0 to 0.3
Titanium (Ti), % 0.070 to 0.2
0 to 0.2
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.1
4.0 to 5.0
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0 to 0.15
0 to 0.15