Hastelloy C22 Sheet

Hastelloy C22 sheet is an alloy made from nickel-chromium-molybdenum-tungsten, which is highly resistant to various corrosive agents. This alloy with the UNS N06022 number demonstrates high resistance to pitting, crevice corrosion, and stress corrosion cracking, and it has good stability and high mechanical properties. Hastelloy C22 is extensively applied in those industries where the material’s ability to perform in highly corrosive chemical environments is paramount.

Chemical Composition of Hastelloy C22 sheet

The composition of Hastelloy C22 sheet is crucial for understanding its properties and performance in various industrial applications.

Ni	Cr	Mo	W	C	Si	Co	Mn	V	P	S
Bal	20.00-22.50	12.50-14.50	2.50-3.50	≤0.015	≤0.080	≤2.50	≤0.50	≤0.35	≤0.02	0.02

Thus, this table provides valuable insights into the chemical composition of these flanges, highlighting their properties and suitability.

Mechanical Properties of Hastelloy C22 sheet

The table provides essential information for engineers and manufacturers to assess the integrity and durability of Hastelloy C22 sheet in demanding environments.

Tensile Strength ksi(MPa )	Yield Strength (MPa)	Elongation (%)
≥100(690)	≥310	≥45

Thus, this valuable data on the strength, flexibility, and resilience of Hastelloy C22 sheet is crucial for ensuring reliability and longevity.

Advantages of Hastelloy C22 sheet

These flexible sheets offer numerous benefits for various industrial applications, which are as follows.

Outstanding Corrosion Resistance: Hastelloy C22 sheet is ideal for use in various corrosive environments, such as oxidising and reducing conditions. It is very resistant to sulfuric acid, hydrochloric acid, nitric acid and other aggressive chemicals.
Excellent Resistance to Pitting and Crevice Corrosion: The Hastelloy C22 sheet also has good resistance to pitting and crevice corrosion, which is important in areas with high levels of corrosion.
Resistance to Stress Corrosion Cracking: Stress corrosion cracking is a significant problem in many industries, and Hastelloy C22 is one of the best materials for such applications.
High-Temperature Stability: The alloy has good mechanical properties and corrosion resistance at high service temperatures. Therefore, it is suitable for high-temperature services.
Good Fabricability: Hastelloy C22 can be easily formed and welded using regular methods, so it is possible to produce intricate parts and equipment.
Durability: The excellent corrosion resistance of Hastelloy C22 leads to lower maintenance and repair expenses throughout the product’s lifecycle, making it cost-effective for numerous applications.

Hastelloy C22 sheet offers several advantages that make it suitable for industrial and commercial applications.

Common Applications of Hastelloy C22 sheet

Due to its excellent features, the Hastelloy C22 sheet is preferred in various industrial applications. Some of the main applications include.

Chemical Processing: Hastelloy C22 sheet is widely used in the chemical processing industry for reactors, heat exchangers and piping systems where chemicals and acids are used.
Power Generation: Hastelloy C22 is used in power plants where the material's mechanical properties and corrosion resistance are required for high-temperature components like heat exchangers and boilers.
Petrochemical Industry: The alloy is ideal for use in the petrochemical industry for applications where equipment and pipes are subjected to high temperatures and corrosive conditions.
Pollution Control: The Hastelloy C22 is utilised in scrubbers and exhaust systems in pollution control equipment because it can withstand corrosive attacks by acidic gases and liquids.
Marine Applications: The alloy is suitable for applications that will come into contact with seawater, such as seawater handling systems, heat exchangers, and other parts likely to be exposed to saltwater corrosion.
Aerospace Industry: Hastelloy C22 sheet is used in aerospace applications for parts subjected to high temperatures and corrosive environments for better performance and longevity.
Oil and Gas Industry: Hastelloy C22 is used in the oil and gas industry for downhole and surface equipment, such as tubing and piping, exposing them to sour gas and other aggressive media.

Hastelloy C22 sheet is an application across various industries due to its valuable features, making it versatile.