Corrugated metal gaskets are precision-formed components designed for sealing flanged joints where steam processes, thermal cycling, mechanical stress, and chemical exposure demand more than conventional gasket materials can provide. Characterised by their concentric corrugations, these gaskets combine structural integrity with surface adaptability, allowing them to compress under bolt load while maintaining a reliable seal across a wide range of service conditions.
Due to their metal core construction, corrugated gaskets offer superior mechanical strength and resistance to blowout under fluctuating pressures. They are particularly effective in systems such as heat exchangers, steam lines, high-temperature gas systems, and chemical process equipment, where elevated temperatures, aggressive chemicals, or thermal conductivity are critical operational factors. The corrugation profile enhances flexibility and recovery, allowing the gasket to accommodate flange movement and thermal expansion without loss of sealing performance.
Stainless Steel 304 provides a strong balance of corrosion resistance and mechanical strength, making it suitable for a wide range of industrial environments, including food-grade media, low-pressure steam, and general chemical processing.
Stainless Steel 316 offers superior corrosion resistance in environments exposed to chlorides, acids, or saltwater. It is the preferred material for high-temperature steam systems, aggressive chemical pipelines, and marine applications.
Brass offers good corrosion resistance and malleability, making it an ideal choice for applications involving non-aggressive media and moderate temperatures. Its formability and thermal conductivity also lend well to heat exchanger environments.
Known for its excellent corrosion resistance in seawater and brine, cupronickel is particularly suited for marine environments and coastal industrial facilities such as offshore gas lines and desalination plants.
We employ advanced laser cutting techniques to ensure every corrugated gasket meets tight dimensional tolerances and consistent corrugation geometry. Laser cutting provides exceptional edge quality and allows for intricate gasket designs that perfectly match your system specifications. This precision not only enhances the sealing integrity but also minimises material waste and reduces turnaround times.
To improve sealing effectiveness, particularly when flange surfaces are uneven, sensitive to damage, or exposed to aggressive media, Dobson Gaskets offers a range of soft facing materials that can be bonded to the corrugated metal core. These facings help optimise gasket conformity, increase tightness under lower bolt loads, and enhance chemical or thermal resistance depending on the application.
Each facing layer is applied with precision to complement the structural advantages of the corrugated metal core, offering a tailored sealing solution that meets the unique thermal, chemical, and mechanical demands of your system.
Our highly experienced technicians can advise you on the best sheet materials and manufacturing processes for a wide range of gasket applications.
Corrugated metal gaskets are used across critical industrial systems where temperature extremes, pressure fluctuations, and aggressive media demand robust sealing solutions. In heat exchangers, Stainless Steel 316 with graphite facing is ideal for handling thermal cycling and corrosive fluids. For less aggressive duties, Brass provides excellent thermal conductivity and is suited to moderate-temperature heat transfer systems.
Steam applications typically require Stainless Steel 316, which offers exceptional resistance to high temperatures and pressure. Graphite facings enhance sealing performance under thermal expansion and contraction. In gas pipelines, Cupronickel is favoured for its resistance to saltwater and chloride-rich environments, particularly in marine or offshore settings. Where chemical resistance is key, Stainless Steel 316 with PTFE facing ensures compatibility and sealing integrity.
For valve caps and lower-demand applications, Stainless Steel 304 or Brass may be used, offering cost-effective durability. When surface conformity is needed, graphite or PTFE facings ensure a tight, reliable seal.
Each material and facing combination is carefully selected to suit the application's mechanical, thermal, and chemical demands, ensuring long-term performance and system safety.
We supply a vast range of gasket materials, available to buy directly or order from us. For more information visit the Gasket Sheet Materials page