Hastelloy Screw

Hastelloy screws are screws made from Hastelloy which is a Nickel based super alloy that has excellent corrosion resistance and high temperature characteristics. These screws are applied in industries where materials are exposed to extreme conditions such as chemical processing, aerospace, marine and energy industries, where the material is exposed to conditions that could cause it to degrade. Hastelloy screws are usually offered in various grades, including Hastelloy C276, Hastelloy C22, and Hastelloy B2, among others, which have high resistance to pitting, crevice corrosion and stress corrosion cracking. These screws offer excellent and effective fastening solutions in conditions where normal fasteners cannot hold.

Advantages of Hastelloy Screws

These flexible Hastelloy Screws offer numerous benefits for industrial applications.  

•  Exceptional Corrosion Resistance: Hastelloy screws are immune to strong corrosive agents such as strong acids, alkalis, and other chemicals that may be aggressive to most other materials.
•  High-Temperature Tolerance: These screws are not affected by high temperatures, and their strength and durability are not compromised in high heat applications.
•  Resistance to Stress Corrosion Cracking: The Hastelloy screws are not susceptible to stress corrosion cracking in harsh conditions, including highly acidic conditions hence making them very reliable.
•  Durability in Harsh Environments: Hastelloy screws are developed for harsh conditions, and therefore, they are very durable and may not require frequent replacement.
•  Versatility across Grades: They are available in grades like C276 and C22, each designed for certain corrosive environments and used in many industrial applications.
•  Oxidation Resistance: Hastelloy screws do not corrode or get affected by oxidation, especially when used in high temperature applications. Hence, the surface does not deteriorate over time.
•  Resistance to Pitting and Crevice Corrosion: The nature of the alloy used in the fastening prevents pitting and crevice corrosion, hence guaranteeing the fastening in the given environment.
•  Longevity and Low Maintenance: Hastelloy screws are resistant to corrosion, and therefore, the screws do not need frequent replacement and have a longer service life.

Hastelloy Screws offer several advantages that make them suitable for industrial and commercial applications.

Common Applications of Hastelloy Screws

Due to its excellent features, Hastelloy Screws are preferred for various industrial applications.

•  Chemical Processing: Hastelloy screws are widely applied in chemical processing equipment like reactors, mixers, and heat exchangers where there is an exposure to strong acids and corrosive materials.
•  Aerospace Industry: These screws are used in aerospace industry for fastening high temperature parts like turbines, engines and exhausts.
•  Marine Industry: Hastelloy screws are used in marine applications, including offshore drilling platforms, shipbuilding, and seawater-handling systems, because of their excellent resistance to seawater corrosion.
•  Oil and Gas Industry: These screws are widely used in the oil and gas industry to secure equipment that is used in the extraction and refining of oil and gas where equipment is exposed to corrosive chemicals and high temperatures.
•  Power Generation: Hastelloy screws are applied in power plants, especially in nuclear and geothermal energy plants where they are exposed to high temperatures and corrosive environments.
•  Pollution Control Systems: These screws are used in pollution control technologies, for instance, in flue gas desulfurisation systems where the screws are exposed to corrosive gases and chemicals.
•  Pharmaceutical Industry: Hastelloy screws are applied in the manufacturing of equipment that comes into contact with corrosive chemicals in the production of drugs to avoid contamination.
•  Food Processing: Hastelloy screws are used in food processing equipment where the equipment is washed with corrosive cleaning agents or chemicals hence the need for hygienically correct and durable fasteners.

Hastelloy Screws are applied across various industries due to their valuable features, which make them versatile.