Duplex Steel Gaskets

Duplex Steel Gaskets are sealing elements made from duplex stainless steel with the best features of austenitic and ferritic stainless steel. Duplex steel gaskets are well appreciated for their fine corrosion resistance, high strength, and durability and are commonly applied in various industries. These gaskets offer a reliable sealing application in unfavourable conditions like chemical manufacturing, oil and gas, and marine. Due to their high resistance to stress corrosion cracking, pitting, and crevice corrosion, duplex steel gaskets seal connections in piping systems, flanges, and equipment that are exposed to high pressure, temperature, and corrosive environments.

Features of Duplex Steel Gaskets

These flexible Duplex Steel Gaskets offer numerous benefits for industrial applications.  

• Superior Corrosion Resistance: Duplex steel gaskets are very resistant to different corrosive media such as chlorides, acids and seawater and, therefore, are suitable for aggressive conditions.
• High Strength: This is because the yield strength of the duplex steel is twice that of the traditional austenitic stainless steel, making it more resistant to pressure and, therefore, more reliable.
• Resistance to Stress Corrosion Cracking: These gaskets perform well with stress corrosion cracking in chloride and high temperature conditions.
• Pitting and Crevice Corrosion Resistance: Duplex steel gaskets are immune to localized forms of corrosion hence providing a long service in unfavourable environments.
• Cost-Effective: Because of the high strength, the thickness of the duplex steel gaskets can be reduced compared to the normal gaskets, thus cutting the material's costs while improving performance.
• Thermal Resistance: Duplex steel gaskets are suitable for low and high temperatures and, therefore, can be used in various applications.
• Durability: Compared to other gasket materials, duplex steel gaskets have a better fatigue life, and hence, they undergo fewer replacements in the long run.
• Environmental Suitability: These gaskets perform well in corrosive and high mechanical load applications, such as offshore platforms and chemical plants.

Duplex Steel Gaskets offer several advantages that make them suitable for industrial and commercial applications.

Applications of Duplex Steel Gaskets

Due to its excellent features, Duplex Steel Gaskets are preferred for various industrial applications.

• Oil and Gas Industry: Duplex steel gaskets are widely applied in oil and gas refineries, offshore platforms and pipelines due to their ability to create a seal in high pressure and corrosive conditions.
• Chemical Processing: In chemical plants, these gaskets are applied in sealing connections on equipment used in highly corrosive environments such as acids and chemicals.
• Marine Industry: Duplex steel gaskets are suitable for marine environments, especially regarding seawater management, desalination, and marine structures since saltwater affects the material’s durability.
• Power Generation: They are applied in power plants, especially in geothermal and nuclear plants, where they are required to make leakproof joints in equipment exposed to high temperatures and corrosive environments.
• Water Treatment: The most common gaskets used in water treatment plants, particularly in desalination and filtration applications, are made from duplex steel.
• Petrochemical Industry: These gaskets are used for sealing reactors, heat exchangers, and pipelines dealing with high temperature and corrosive fluids.
• Pulp and Paper Industry: In the pulp and paper industry, the chemical used in the bleaching and pulping process attacks the gasket material; therefore, the pulp and paper industry uses duplex steel gaskets.
• Pharmaceutical Industry: In producing pharmaceuticals, the duplex steel gasket is used in equipment that comes into contact with the corrosive cleaning agents and chemicals used to produce the drugs.
• Food and Beverage Industry: These gaskets are also used in food processing equipment where corrosion resistance and hygiene are important to ensure the products are not contaminated.

Duplex Steel Gaskets are applied across various industries due to their valuable features, which make them versatile.