7116 aluminium alloy

Aluminium 7116 alloy is heat treatable wrought alloy.^[1] It has 4.2 to 5.2 weight percentage of Zinc. It also contains magnesium, copper as small additions.

Chemical composition

Element[1]	Weight Percentage (%)
Aluminum	91.5 - 94.5
Zinc	4.2 - 5.2
Magnesium	0.80 - 1.4
Copper	0.50 - 1.1
Iron	≤ 0.30
Silicon	≤ 0.15
Titanium	≤ 0.050
Vanadium	≤ 0.050
Manganese	≤ 0.050
Gallium	≤ 0.030
Other (each)	≤ 0.050
Other (total)	≤ 0.15

Properties

Properties	Metric
Density[1]	2.78 g/cm3
Young's Modulus[2]	69 MPa
Elongation at Break[2]	7.8%
Fatigue Strength[2]	160 MPa
Poisson's Ratio[2]	0.33
Ultimate Tensile Strength[2]	370 MPa
Yield Strength[2]	330 MPa
Specific Heat Capacity[2]	880 J/kg-K
Thermal Conductivity[2]	150 W/m-K

Applications

Its application is in the aviation industry^[1]