Aluminium

What Is Aluminum?
Derived from bauxite ore found in nature, aluminum is a silver-white, lightweight metal with high corrosion resistance and outstanding sustainability. With its identity as a 100% recyclable “Green Metal” and superior strength, it is an indispensable solution partner of global industries— from automotive and defense to marine and architecture.

How Is Aluminum Produced?

The production journey begins at the source of quality. The extracted bauxite ore is analyzed for compliance with international standards (EN / ASTM / DIN), and its chemical composition and efficiency are meticulously tested and approved in laboratory environments.

The selected bauxite ore is processed through precise refinery stages (Bayer Process) and transformed into pure “Alumina” (Aluminum Oxide), known as the white gold of industry. This stage is a critical transformation that determines the material’s purity level.

Six main stages that define aluminum quality:

Mining (Raw Material Supply)

Refining (Alumina Conversion)

Electrolysis (Molten Metal)

Casting (Billet & Sheet)

Extrusion & Rolling (Forming)

Surface Treatment (Anodizing / Coating / Film)

Alumina is processed in electrolysis cells using advanced technology and electrical current to reach a molten state. At the end of this electrochemical process, oxygen is released, and molten aluminum with 99.7% purity—meeting industrial standards— accumulates at the bottom.

Magnesium, Silicon, or Manganese is precisely added to the molten aluminum according to its intended application (automotive, marine, etc.). This step determines the material’s final mechanical properties and chemical resistance.

The specially prepared alloy is cast into molds to form billets, initiating a process of 100% traceability. It is then subjected to heat treatment in homogenization furnaces to ensure a flawless internal structure and readiness for processing.

The annealed billets are shaped with millimetric precision by passing through steel dies on our modern press lines. After precise cutting, stretching, and controlled cooling processes, they are made ready for shipment with high surface quality.

Infinitely recyclable aluminum is defined as a “Green Metal” in line with the #greenerplanet goal, a core part of the CHN vision. Its energy-saving, eco-friendly structure forms the foundation of sustainable futures and environmentally responsible projects.