• Hastelloy coating developed by the HVAF process provides high resistance in various situations
  • Uniform corrosion attack, localized corrosion, stress corrosion and cracking
  • Pitting and crevice corrosion due to chlorides and other halides
  • Oxidizing and non-oxidizing environment
  • Sulphide stress and cracking in an oil field environment
• Ease in the spraying process
• Protection against corrosive attack combined with high temperature, abrasion, cavitation and erosion
• Hastelloy coatings depend on the following characteristics:
  • Porosity
  • Bond Strength
  • Oxidation Levels
• Hastelloy coatings developed by the HVAF process offer high resistance to uniform corrosion attack, localized corrosion resistance and stress corrosion cracking resistance with the following features
  • Offer resistance to oxidizing and non–oxidizing environments.
  • Easy to spray and wear-resistant in chloride-based solutions. A typical phenomenon occurs in austenitic stainless steel.
• The high amount of chromium and molybdenum content makes these coatings super resistant to pitting and crevice corrosion attacks in the presence of chlorides and other halides.
• Resistance to sulphide stress and cracking in an oil field environment.
• Hastelloy coatings are particularly required in case of corrosive attack combined with high temperature, abrasion, cavitation and erosion.
• Hastelloy coatings depend on the following characteristics:
  • Porosity
  • Bond Strength
  • Oxidation Levels

Explorethermal sprays HVOF Hastelloy coatings at our spray shop in Mumbai, Maharashtra, India.

Shield of Endurance Impact

• Hastelloy coatings with the HVAF process offer lower porosity and oxidation as compared to conventional HVOF processes due to much lower process/combustion temperature, faster particle velocity and less oxidation of feedstock materials.
• Hastelloy coatings sprayed by HVAF and HVOF are well machinable.
• Hastelloy C coating shows excellent resistance to corrosion in chlorides, reducing acids, hydrogen sulphides and gases containing sulphur oxides.
• Resistance to elevated temperature and dew point corrosion is well established.
• Hastelloy coatings have high ductile properties coating allowing welding in the near vicinity of the coatings.

Hastelloy-C Coating Characteristics

Pre-alloyed powder, gas-atomized.

Typical Applications of Hastelloy Coatings

Used for corrosion protection of:

• Impeller blades and housing of pumps.
• Pump sleeves and fittings.
• Sulphuric acid-handling equipment.
• Chemical processing.
• Pulp and paper production.

Certified by Chevron and other international oil and gas companies for corrosion protection of refinery vessels.

Coating Properties

Hastelloy Coating used in Chemical Refineries

Hastelloy C-276 Coating Used on Sleeves in Chemical Refineries