Alloys with aluminum as the main metal are called "Aluminum Alloys", also known as light alloys. The most commonly used accompanying metals are Copper (Cu), Magnesium (Mg), Manganese (Mn), Silicon (Si), Zinc (Zn), Lead (Pb).

Alloyed aluminum sheets are obtained by adding various elements (copper, magnesium, manganese, silicon, zinc, etc.) to pure aluminum, thereby improving specific mechanical and physical properties. These sheets are widely used in many industries, especially for their strength, corrosion resistance, machinability, and weldability.

Usage Characteristics of Alloyed Aluminum Sheets

• High Strength:
  • Some alloys (e.g., 7xxx series - zinc-based) exhibit very high mechanical strength.
  • Preferred in applications requiring high strength, such as aerospace and defense industries.


• Good Corrosion Resistance:
  • Especially the 5xxx series (magnesium alloys) is used in marine and exterior applications.
  • Some alloys (e.g., 2xxx series) have low corrosion resistance, thus surface coating may be required.


• Machinability and Formability:
  • Depending on the alloy, suitable for cold forming and machining.
  • 3xxx and 5xxx series offer good formability.


• Weldability:
  • 1xxx, 3xxx, and 5xxx series are suitable for welding.
  • 2xxx and 7xxx series have limited weldability due to cracking tendency.


• Heat Treatment Capability:
  • Some alloys can be hardened by heat treatment (e.g., 2xxx, 6xxx, 7xxx series).
  • This process increases strength.


• Lightweight:
  • Their density is approximately 1/3 of steel, providing advantages in energy saving and weight reduction.


• Aesthetic and Surface Properties:
  • Surface treatments such as brightness and anodizing are possible.
  • Important in architectural applications.

Main Application Areas:

• Aerospace and automotive industries
• Shipbuilding and maritime
• Construction and architectural façade cladding
• Home appliances and electrical-electronic
• Food and packaging industry (especially 1xxx and 3xxx series)