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7204-O Aluminum vs. Annealed ASTM B596

7204-O aluminum belongs to the aluminum alloys classification, while annealed ASTM B596 belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 7204-O aluminum and the bottom bar is annealed ASTM B596.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Elongation at Break, % 13
17
Poisson's Ratio 0.33
0.41
Shear Modulus, GPa 26
36
Shear Strength, MPa 130
280
Tensile Strength: Ultimate (UTS), MPa 220
450

Thermal Properties

Latent Heat of Fusion, J/g 380
77
Melting Completion (Liquidus), °C 640
1060
Melting Onset (Solidus), °C 520
930
Specific Heat Capacity, J/kg-K 880
150
Thermal Expansion, µm/m-K 24
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
14
Electrical Conductivity: Equal Weight (Specific), % IACS 120
6.7

Otherwise Unclassified Properties

Density, g/cm3 2.9
18

Common Calculations

Stiffness to Weight: Axial, points 13
3.1
Stiffness to Weight: Bending, points 47
8.5
Strength to Weight: Axial, points 21
6.8
Strength to Weight: Bending, points 28
7.1
Thermal Shock Resistance, points 9.4
22

Alloy Composition

Aluminum (Al), % 90.5 to 94.8
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.2
9.0 to 11
Gold (Au), % 0
89 to 91
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 1.0 to 2.0
0
Manganese (Mn), % 0.2 to 0.7
0
Silicon (Si), % 0 to 0.3
0
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 4.0 to 5.0
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.4