Hastelloy C-22, a highly corrosion-resistant nickel-based alloy with excellent mechanical properties (tensile strength approximately 690 MPa, yield strength around 310 MPa, hardness typically below HB 220), finds wide applications in chemical, marine, petrochemical, environmental, aerospace, and electronics industries due to its exceptional corrosion resistance, high temperature resistance, and processability.
Hastelloy C-22 is a highly corrosion-resistant nickel-based alloy with excellent mechanical properties. The following are indicators of the mechanical properties of Hastelloy C-22:
Tensile Strength: The tensile strength of Hastelloy C-22 is typically around 690 MPa.
Yield Strength: The yield strength of Hastelloy C-22 is usually around 310 MPa.
Hardness: The hardness of Hastelloy C-22 is typically below HB 220.
It should be noted that these values may vary slightly depending on the manufacturer, specification and production batch. In practice, Hastelloy C-22 is typically used in environments requiring high corrosion resistance, such as chemical, marine, and aerospace. In addition to its mechanical properties, Hastelloy C-22 has excellent corrosion resistance, thermal stability, and processability, making it ideal for many specialised environments.
| Environment |
Corrosion Resistance Performance |
| Strong acids (e.g., sulfuric, hydrochloric, nitric) |
Excellent, exhibiting outstanding corrosion resistance |
| Strong alkalis |
Excellent, demonstrating good resistance to corrosion |
| High temperature oxidative environments |
Excellent, showing good corrosion resistance in high temperature oxidative environments |
| Saltwater |
Excellent, showing good resistance to salt corrosion |
| Chlorides |
Excellent, displaying outstanding resistance to chloride corrosion |
Hastelloy C-22 is widely used in environments that require resistance to corrosion, high temperatures, and good mechanical properties, making it one of the most important materials in many key industries. Its corrosion-resistant properties make it ideal for use in the chemical industry, marine engineering, petrochemicals, environmental equipment, aerospace and electronics industries.
In the chemical industry, Hastelloy C-22 is commonly used in pipelines, reactors, heat exchangers and other equipment that resist strong acids, alkalis and other corrosive media. In the field of marine engineering, the material is required to have good resistance to seawater corrosion, so Hastelloy C-22 is often used in offshore platforms, ship components and so on. In the petrochemical field, Hastelloy C-22 plays an important role in oil refineries, fertiliser plants, petrochemical equipment and so on.
Environmental protection equipment needs to resist corrosive substances in various wastewater and exhaust gases, Hastelloy C-22 is widely used in sewage treatment equipment, flue gas desulphurisation equipment, etc. due to its corrosion resistance. In addition, Hastelloy C-22 is used in the aerospace field to manufacture high temperature parts, such as turbine engines and turbine blades for jet engines. In the electronics industry, Hastelloy C-22 is also used in transmission piping and equipment to resist corrosive gases.
