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7204 Aluminum vs. A242.0 Aluminum

Both 7204 aluminum and A242.0 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 7204 aluminum and the bottom bar is A242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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