Discover the complete range of outer ring materials used in spiral wound gasket manufacturing. Compare corrosion resistance, mechanical strength, operating temperatures and engineering characteristics before selecting the right outer ring material for your sealing application.
The outer ring of a spiral wound gasket provides accurate gasket centering, prevents excessive compression and improves installation control between flanges. Different outer ring materials are selected according to operating pressure, temperature, corrosion environment and compatibility with the sealing system.
Select an outer ring material to understand engineering characteristics, applicable standards, service conditions and industrial applications.
Stainless steel outer rings provide excellent corrosion resistance, dimensional stability and long service life for spiral wound gaskets used in chemical processing, power generation and high-temperature applications. Common grades include SS304, SS316 and higher alloy stainless steels.
Carbon steel outer rings are widely used for general industrial applications where corrosion requirements are moderate. They provide accurate gasket positioning, structural support and economical performance for standard pressure services.
Duplex stainless steel outer rings combine high mechanical strength with excellent resistance against chloride corrosion and stress corrosion cracking. They are selected for offshore, marine and chemical processing applications.
Nickel alloy outer rings are designed for highly corrosive environments and elevated temperature applications where conventional stainless steel materials cannot provide adequate performance. They are commonly used in chemical, petrochemical and extreme service applications.
Spiral wound gasket outer rings are selected across industries requiring accurate gasket positioning, compression control and reliable flange installation.
Pipeline flanges, pressure vessels, valves and offshore equipment.
Reactors, heat exchangers, storage tanks and process piping.
High pressure and high temperature process systems.
Steam lines, turbines, boilers and auxiliary systems.
Seawater piping, offshore platforms and desalination systems.
Clean processing equipment and high purity applications.
Provides accurate positioning of the gasket between flanges and improves installation reliability.
Prevents excessive compression and protects the spiral winding from mechanical damage.
Helps maintain proper gasket centering during flange assembly and tightening operations.
Outer rings are manufactured according to recognized ASTM, ASME, EN, DIN and JIS material specifications.
The outer ring centers the gasket between flanges, prevents excessive compression and provides installation guidance during assembly. It also protects the gasket winding from incorrect positioning.
Carbon steel and stainless steel outer rings are the most commonly selected materials because they provide reliable mechanical support, accurate alignment and cost-effective performance for a wide range of applications.
Stainless steel outer rings are preferred for corrosive environments, while duplex stainless steel, nickel alloys and titanium are selected for offshore, chemical and extreme service applications requiring higher corrosion resistance.
Our engineering team can help you select the most suitable outer ring material according to operating pressure, temperature, flange design and service environment.
Contact Engineering