Protecting structures in the event of a fire is a major challenge for the oil & gas and petrochemical industries. To ensure the safety of workers and installations, superior fire-resistant products are required. Our solution: Alupur®

Strength and fire resistance

Alupur® combines the strength and fire resistance of steel with the corrosion resistance of pure aluminium. By using Alupur® jacketing, operators can lower maintenance costs and increase safety.

It is a Type 2 aluminized steel which exceeds the ASTM A463/A463M standard. Compared to standard Aluminized Type 2 steels, ArcelorMittal’s Alupur® is pure aluminium coating (No silicon addition) which enhances its corrosion resistance.

Alupur® unique properties

In comparison to most other metallic-coated steels, Alupur® offers good thermal and light reflectivity to minimize the effects of heat radiation. Even after accelerated ageing, Alupur® maintains more than 80% of its reflectivity.

Alupur® has superior corrosion resistance in all environments (urban, industrial, and marine) thanks to the hard and passivating layer of aluminium oxide which forms on the surface of the coated steel. The effect extends to uncoated cut edges, ensuring long-term protection. In marine environments, Alupur® exhibits much better resistance to chloride cracking than the commonly used stainless steel grade.

Corrosion resistance is maintained in the presence of heat, and hazardous aggressive fire of products found in oil and gas installations.

Alupur® advantages in summary:

  • superior passive fire resistance
  • very good corrosion resistance
  • thermal and light reflectivity
  • up to 2.5 mm pre-coated steel