2018 T6 Aerospace Aluminum Forgings
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2018 T6 Aerospace Aluminum Forgings

2018 aluminum alloy is a type with good machining performance, and 2018 T61 aviation aluminum forgings are suitable for processing aircraft engine cylinders, heads, pistons and other products.

Why choose Chalco

The quality fully complies with world aviation standards

ASTM B247-17a

AMS 4140


UNS A92018

The production and management conform to the international aviation quality system certification


ISO 14001


aerospace certification

2018 aviation aluminum forging specifications

Open Die Forging Cube ≤9T Length≤7000mm,
Disk ≤5T Diameter≤2500mm
Ring ≤5T Outer diameter of quenching parts≤2500mm,
Outer diameter of non-quenching parts≤4000mm,
Cylinder ≤5T Outer diameter 200-800mm,Length≤2000mm;
Outer diameter 801-2000mm,Length≤1500mm;
Axle ≤8T Length≤7000mm,
Backward Extrusion Forged Pipe Outer diameter ≤830mm,
Inner diameter≤650mm,
Closed Die Forging Common Closed Die Forgings - PVA≤3.0 ㎡(Diameter≤1950mm)
Complex Closed Die Forgings - PVA≤1.5 ㎡(Diameter≤1400mm)

2018 chemical composition of aviation aluminum forgings

Element Content requirements
Al Remainder
Si ≤0.9
Fe ≤1.0
Cu 3.5-4.5
Mn ≤0.20
Mg 0.45-0.9
Cr ≤0.10
Ni 1.7-2.3
Zn ≤0.25
Others Each ≤0.05; total ≤0.15

2018 physical or mechanical properties of aviation aluminum forgings

Physical properties Value
Density 2.78 g/cm3
Tensile strength 414 MPa
Yield Strength 324 MPa
Elongation 10%
Hardness 120 HB
Thermal expansion coefficient 23.1 × 10-6/℃
Thermal conductivity 121 W/(m·K)
Welding performance excellent
Corrosion resistance good

Features of 2018 aviation aluminum forgings

2018 aluminum alloy forging is a forging material with high strength, high hardness and good wear resistance. It has the following characteristics:

  • high strength
  • good heat resistance
  • good corrosion resistance
  • good machinability
  • easy to solder
  • good machinability
  • lightweight

features of 2018 aerosapce aluminum forging

2018 application of aviation aluminum forgings

Aircraft structural parts: 2018 aluminum alloy forgings can be used to manufacture various structural parts of aircraft, such as wings, beams, brackets, etc.

Spacecraft structural parts: 2018 aluminum alloy forgings can also be used to manufacture spacecraft structural parts, such as satellite platforms, frames, antennas and structural supports.

Engine components: 2018 aluminum alloy forgings can also be used to manufacture engine components for aircraft and rockets, such as intake ducts, exhaust ducts, turbines and impellers, etc.

Airborne equipment: 2018 aluminum alloy forgings can also be used to manufacture various airborne equipment and components, such as control systems, communication equipment and electrical connectors.

application of 2018 aerospace aluminum forging

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