Duplex & Alloys

Specifities of noble alloys and superalloys

To achieve high corrosion resistance in severe environments, special alloys must be used.

Anti-corrosion alloys superalloys

Superalloys include the Inconel, Incoloy, Hastelloy and Monel families, which are characterised by very high chrome, nickel and molybdenum content. These alloys must be treated to ensure their corrosion resistance :

  • Degreasing using strenghened products, pre-degreasing with caustic products
  • Material-specific stripping
  • Stricter passivation and final passivation tests

Superalloys undergo reinforced cleanliness and passivation tests, given the final constraints exerted on the equipment.