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2618 Aluminum Forgings

Last Updated: 2023-07-26

1.Prodsuct Description:


2618 Aluminum Forgings

2618 is a kind of heat-resistant and deformed aluminium alloy which can be strengthened by heat treatment. Its working temperature can be up to 250 ℃. It is used to manufacture long-term working supersonic aircraft structural parts, such as fuselage and wing skin frame, tail wing, parts and components of low-speed aircraft whose working temperature is not higher than 150 ℃, and parts of jet engine whose working temperature is not higher than 250 ℃.


2.Chenmical Composition


The following table shows the chemical composition of Aluminum 2618 alloy.

ElementContent (%)
Aluminum, Al93.7
Copper, Cu2.3
Magnesium, Mg1.6
Iron, Fe1.1
Nickel, Ni1
Silicon, Si0.18
Titanium, Ti0.07


3.Mechanical Properties


The mechanical properties of the Aluminium / Aluminum 2618 alloy are outlined in the following table.

PropertiesMetricImperial
Tensile strength440 MPa63817 psi
Yield strength370 MPa53664 psi
Shear strength260 MPa37709 psi
Fatigue strength125 MPa18130 psi
Elastic modulus70-80 GPa10153-11603 ksi
Poisson's ratio0.330.33
Elongation0.10.1


4.Physical Properties


The physical properties of the Aluminium / Aluminum 2618 alloy are tabulated below.

PropertiesMetricImperial
Density2.6-2.8 g/cm30.0939- 0.101 lb/in3
Melting point510°C950°F


5.Prodsuct Feature


Aluminium / Aluminum alloys have high ductility and corrosion resistance. At subzero temperatures, their strength can be increased. However, their strength can be reduced at high temperatures of about 200-250°C. Aluminium / Aluminum 2618 alloy is an age hardenable alloy containing magnesium and copper.

Commonly used in the manufacture of aircraft engines.

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