AA 7039 is an aluminum alloy principally containing zinc (3.5–4.5%) as an alloying element. It is heat treatable wrought aluminum alloy. It is used for making armour suites.
Chemical Composition NoElementContent (%)1Aluminum, AlRemainder2Zinc, Zn3.5 - 4.53Magnesium, Mg2.3 - 3.34Silicon, Si0.3 max5Iron, Fe0.4 max6Chromium, Cr0.15 - 0.257Manganese, Mn0.1 - 0.48Copper, Cu0.1 max9Titanium, Ti0.1 max10Remainder (total)0.15 max
Physical Properties NoPropertiesMetric1Density2.74 g/cm32Melting point482-638°C
Mechanical Properties NoPropertiesMetric1Tensile strength450 MPa2Yield strength380 MPa3Elongation at break13%4Elastic modulus69.6 GPa5Shear strength255 MPa
For more properties, visit
Aluminum 7039-T61 Properties Aluminum 7039-T64 Properties
Applications Aluminium 7039 alloy is chiefly used as an armor alloy. It is used for making armor suite.
References
Further reading "Properties of Wrought Aluminum and Aluminum Alloys: 7039", Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, Vol 2, ASM Handbook, ASM International, 1990, p. 109-111. Mechanical and ballistic properties of powder metal 7039 aluminium alloy joined by friction stir welding
Aluminum alloy table