Component criteria	Cylindrical ..Example Roller/Rod/Shaft.	Component criteria	Rectangular …Example Plate
Diameter of Job		Coating Length
Coating Length		Coating Breadth
Coating Thickness		Coating Thickness
Post Grinding Required	Yes No Ra Finish = (µm)	Post Grinding Required	Yes No Ra Finish = (µm)
Quantity		Quantity
Delivery Expectation		Delivery Expectation
Price / Piece in INR		Price / Piece in INR

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.

Used for corrosion protection of:

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

Feature	S.I Units
Apparent metallographic porosity	<1.0%
Hardness, HRC	20-30
Bond strength to carbon steel (@500 microns (0.020″) Thk), MPA (PSI)	80(12,000+)
Maximum coating thickness (as-sprayes), mm (inch)	2(0.080)

Hastelloy Coating used in Chemical Refineries

Hastelloy C-276 Coating Used on Sleeves in Chemical Refineries