Transportation Equipment

High-Strength Aluminum Alloy Sheets for Aircraft (Quenched Sheets)

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Use in Aircraft, Rocket Exteriors and Structural Applications

Picture of High-Strength Aluminum Alloy Sheets (Quenched Sheets)

Aircraft, rocket exterior materials and structural materials all require superb strength but must be lightweight. Consequently, a material known as duralimin―a type 2000 alloy with a strength on a par with steel―and type 7000 alloy―which is one of the strongest types of aluminum―are used. The Company uses various facilities and testing equipment, such as a large-scale quenching (heat treatment) furnace and supersonic flaw detector to produce materials that meet the high quality demands of the aerospace industry.


  • Aircraft materials are manufactured to strict standards, such as the AS9100 standard, and special process is under stringent management at Nadcap-certified factories.
  • Materials are placed in solution in large-scale quenching furnaces, adding fatigue characteristics to the high strength that they gain during heat treating and baking, resulting in high-strength heat treated materials.
  • 1230 alloy and 2024 alloy can be combined and surface-polished to create a product that maintains an attractive surface and offers superior strength and corrosion resistance (polished skin sheet).

Regulatory Approval Status

  • Acquired AS9100 certification for aircraft materials
  • Acquired Nadcap certification related to specialty processes

Certification status of Fukui Works

Alloys, processes Applicable regulation
2024 AMS-QQ-A-250/4
2024C AMS-QQ-A-250/5
7050 AMS4050
7075 AMS-QQ-A-250/12
7475 AMS4202
Heat treatment AMS2750
Ultrasonic flaw detection AMS-STD-2154
Picture of Supersonic flaw detector
Supersonic flaw detector

Product Size

Size of Typical Aircraft Materials

By alloy and quality Typical size (mm)
2024C-T3* 5×2,390×12,000
7050-T7451 127×1,219×3,658
7075-T7351 102×1,219×3,658

* 2024C-T3 is a polished skin sheet.

Fabrication Ranges

Fabrication ranges for aircraft materials (Heat-treated alloy QQA-SPEC)


Sheet, etc. Maximum width Maximum length
2024、2024C-T3、361 6061-T5、651 7075-T4, T651 T7451
2.0–3.0 2,000 2,000 2,000 2,000 10,000
–12.0 2,300 2,300 2,300
–24.0 2,700 2,700 2,000
–46.0 3,000 3,000 2,500
–50.0 3,000 2,500
–55.0 2,700 2,200 12,000
–60.0 2,500 2,000 1,500
–65.0 2,500 1,900
–70.0 2,300 1,750
–75.0 2,000 1,600
–80.0 1,500 1,500 914
–85.5 1,700
–90.0 1,500
–131.0 1,500