7150 aluminium alloy

Aluminium 7150 alloy is a heat treatable wrought alloy. It is used in the aerospace industry for manufacturing aircraft components. Heat treatment can improve its anti-corrosion properties with a low corresponding decrease in strength.^[1][2]

Chemical composition

Element[1]	Content (%)
Aluminum	85.9 - 89.5
Zinc	7.2 - 8.2
Magnesium	2 - 2.9
Copper	1.2 - 1.9
Silicon	≤ 0.15
Titanium	≤ 0.10
Iron	≤ 0.20
Chromium	0.10 - 0.22
Manganese	≤ 0.20
Other (total)	≤ 0.15

Properties

Properties	Value
Density[1]	2.84 g/cm3
Ultimate tensile strength[3]	607 MPa
Yield strength[3]	565 MPa
Elongation at break[3]	11%
Fracture toughness[3]	26.4 MPa-m½

Alternate designations

It has the following alternate designations:^[4]

• AA 7150
• AMS 4252A
• 4306A
• 4307S
• 4345A
• UNS A97150