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Hastelloy C22 flanges are composed of nickel, chromium and molybdenum alloy. Additionally, it contains trace amounts of other elements, such as tungsten, iron, cobalt, manganese and silicon, which give it a unique composition. This composition makes Hastelloy C22 Flanges ideal for highly corrosive environments due to its exceptional resistance against various chemical agents. It also features good mechanical strength and high-temperature performance, which is especially useful when dealing with extreme heat and pressure. In conclusion, this powerful combination provides the perfect solution for industrial applications where utmost corrosion protection is called for.

C22 Hastelloy flanges offer an excellent combination of strength and corrosion resistance, making them ideal for various industrial applications. These flanges resist localized attacks like intergranular pitting and crevice corrosion, while their molybdenum content gives them superior resistance to chloride-induced stress corrosion cracking. Additionally, Hastelloy C22 flanges have excellent tensile strength and formability, making them highly useful in environments that experience high temperatures or harsh chemicals. 

Hastelloy C22 flanges are known for their exceptional corrosion resistance in aggressive environments. Hastelloy C22 flanges play a crucial role in various industries where corrosive substances are prevalent. Here are some applications and advantages of Hastelloy C22 flanges:

Applications of Hastelloy C22 Flanges:

  1. Chemical Processing Industry: Hastelloy C22 flanges find extensive use in the chemical processing industry due to their resistance to a wide range of corrosive chemicals, including acids, chlorides, and sulfuric compounds. They are commonly employed in reactors, vessels, and pipelines.
  2. Petrochemical Industry: In petrochemical plants, where exposure to corrosive materials is prevalent, Hastelloy C22 flanges are utilized for connecting pipes and equipment. They provide reliability in maintaining the integrity of the system under harsh conditions.
  3. Pharmaceutical Industry: The pharmaceutical industry often deals with aggressive chemicals during various manufacturing processes. Hastelloy C22 flanges are preferred for their ability to resist corrosion, ensuring the purity and integrity of pharmaceutical products.
  4. Power Generation: Power plants, especially those using fossil fuels, face corrosion challenges. Hastelloy C22 flanges are employed in critical areas of power generation systems to withstand the corrosive effects of combustion by-products and cooling fluids.
  5. Waste Treatment and Pollution Control: Hastelloy C22 flanges are suitable for applications in waste treatment facilities and pollution control systems where exposure to corrosive gases and liquids is common. They help maintain the efficiency and longevity of equipment in such environments.
  6. Desalination Plants: In desalination processes, Hastelloy C22 flanges resist corrosion caused by saltwater, making them ideal for connecting components and pipelines in desalination plants.

Chemical Composition of Hastelloy C22 Flanges:

Explore the corrosion-resistant excellence of Hastelloy C22 flanges through a comprehensive chemical composition table overview.

Hastelloy C220.010 max0.50 max0.08 max2.5 max0.02 maxBal20 – 22.52 – 612.5 – 14.52.5 – 3.50.35 max0.02 max


Hastelloy C22 flanges showcase a robust chemical composition, ensuring corrosion resistance and reliability in diverse applications.

Mechanical Properties of Hastelloy C22 Flanges:

Uncover the strength and durability of Hastelloy C22 flanges through a detailed mechanical properties table overview.

Density8.69 g/cm3
Melting Point1399 °C (2550 °F)
Tensile StrengthPsi – 1,00,000 , MPa – 690
Yield Strength (0.2%Offset)Psi – 45000 , MPa – 310
Elongation45 %

Hastelloy C22 flanges display exceptional mechanical properties, guaranteeing longevity, strength, and reliability in various industrial applications.

Advantages of Hastelloy C22 Flanges:

  1. Corrosion Resistance: The primary advantage of Hastelloy C22 flanges is their exceptional corrosion resistance in oxidizing and reducing environments. They resist pitting, crevice corrosion, and stress corrosion cracking, making them suitable for harsh industrial applications.
  2. Wide Chemical Compatibility: Hastelloy C22 flanges exhibit compatibility with a broad spectrum of chemicals, including strong acids, bases, and salts. This versatility makes them a preferred choice in industries dealing diverse chemical processes.
  3. High Temperature Resistance: These flanges maintain their mechanical properties and corrosion resistance at elevated temperatures, making them suitable for high-temperature applications.
  4. Ease of Fabrication: Hastelloy C22 Flanges is a malleable alloy, allowing for easy fabrication of flanges with various shapes and sizes. This ease of fabrication contributes to their widespread use in custom-designed components.
  5. Longevity and Reliability: Hastelloy C22 flanges have a long service life, offering durability and reliability in demanding industrial settings. This longevity reduces maintenance costs and downtime.
  6. Adaptability to Welding: Hastelloy C22 flanges are weldable, facilitating their integration into existing systems and allowing for necessary modifications.

Physical Properties of Hastelloy C22 Flanges:

Dive into the foundational characteristics of Hastelloy C22 flanges with an insightful physical properties table overview.


Electrical Resistivity

Specific Heat

Melting Range


Hastelloy C22 flanges feature outstanding physical properties, ensuring suitability for diverse applications with enduring reliability.

Hastelloy C22 flanges are vital components in industries where corrosion resistance is paramount. Their wide range of applications and numerous advantages make them a preferred choice for critical systems in chemical processing, petrochemical, pharmaceutical, power generation, waste treatment, and other industries dealing with corrosive environments.

FAQ's for Hastelloy C22 Flanges

Hastelloy c22 flanges are primarily used in applications that require high corrosion resistance such as marine engineering, chemical processing and pollution control systems. It can also be used in power generation, pharmaceuticals, food processing and oil & gas production.

Hastelloy c22 flanges offer excellent corrosion resistance to both oxidizing and reducing media. It also has good mechanical strength, making it suitable for use in corrosive environments. Additionally, Hastelloy c22 is highly resistant to localized corrosion, such as pitting and stress corrosion cracking.

Yes, Hastelloy C22 flanges are heat resistant. They are made of nickel-chromium-molybdenum alloy which is highly resistant to elevated temperatures and oxidation. This makes them ideal for high temperature environments such as steam piping, hot water systems, and other applications that require corrosion resistance at elevated temperatures. The material used in the production of these flanges is also extremely durable, allowing them to withstand extreme pressure and temperature fluctuations over time.

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