
The Assureaseal™ SSC is designed for severe service applications. The gasket is suitable for sealing piping flanges with low media or hydrocarbon-based fluids. With temperature limits up to 200°F (Dry) and 350°F (ROO), the Assureaseal™ SSC functions as a dependable pipe flange gasket seal in demanding environments.
The Assureaseal™ SSC gasket is manufactured from a glass epoxy laminate that is permanently fused to a 316 Stainless Steel core. This material offers high compression strength for positive sealing in harsh environments while maintaining electrical isolation. This severe service gasket incorporates a Spring Energized Teflon Seal. The seal contains a 316 stainless steel internal coil spring that is 10,000# class rated. This gasket can be purchased alone for standard service gaskets or as a complete isolation kit that includes isolation sleeves, washers, and sealing washers. This construction aligns with the performance standards expected from Assureaseal SSC Critical Service Gaskets used in high-demand industrial systems.
High-strength laminate material resists failure due to excessive compression from over-torquing.
Stops galvanic corrosion in dissimilar metal flanges
Protected internal Teflon seal with stainless spring
Pressure-energized seal provides extreme confidence in sealing, preventing costly leaks
Maintains secure sealing performance through flange vibration, temperature, and pressure fluctuations
Sealed and isolated at pressure ratings through ANSI 2500 class and API 15,000
Severe service applications
H₂S service
High-pressure flanges
Mating dissimilar flange faces, SSC can seal raised face, flat face, slip-on flanges & ring joint.
Isolation between dissimilar metals to prevent galvanic corrosion
Eliminates worry of sealing flanges where there is severe vibration/variations
Cathodic protection in conjunction with bolt flange isolation
By protecting exposed hardware before corrosion begins, these protective caps reduce costly replacements and contribute to preventative maintenance strategies in harsh environments.
At Step-Ko, we know that working in extreme conditions creates a demand for extreme products that can withstand those conditions to perform at 100 percent. That is why we have designed our Assureaseal Severe Service Applications (SSC) Gaskets that can aid corrosion resistance while maintaining the integrity of piping and piping systems in the most severe applications.
Our Assureaseal SSC Gasket is designed with our customers’ needs in mind. The SSC Gasket is made for sealing piping flanges with hydrocarbon-based low media such as gas, natural gas, and oil. It can also withstand most low concentrations of chemical-based media with a temperature range of -200°F (Dry) to 350°F (ROO).
What this means for our customers is that they can be assured of a gasket that will perform in severe service conditions and cathodic protection, in addition to isolation of flanges, to prevent electrical corrosion, which harsh conditions, such as flange vibration, temperature, and pressure fluctuations, can cause. Another key advantage of Step-Ko’s Assureaseal SSC Gasket is that it can mate dissimilar flange faces. It is capable of sealing raised face flanges, flat face flanges, slip-on flanges, and ring joint flanges.
The step-up AssureaSeal SSC Gasket is made from glass laminate that is fused to a 316 Stainless Steel core, which offers high-compression strength for positive sealing ability in harsh environments while maintaining electrical isolation. The laminate is a barrier to electrical current that helps prevent corrosion from over-tightening. The SSC Gasket also incorporates a spring-energized Teflon seal for optimal sealing performance in harsh conditions. The pressure-energized seal provides extreme confidence in sealing.
High-performance Assureaseal SSC Critical Service Gaskets are built to withstand severe pressure, temperature variation, and aggressive media exposure. Designed with reinforced cores and precision-machined components, these seals deliver consistent compression strength and reliable isolation. Their durability makes them ideal for extreme service environments where mechanical integrity cannot be compromised.
A properly engineered pipe flange gasket seal ensures leak-free operation under fluctuating loads and vibration. It maintains uniform surface contact across raised face, flat face, and ring joint connections. Advanced sealing elements prevent media leakage while supporting electrical isolation in cathodic protection systems. Built for compatibility across high-pressure classes, this sealing solution performs consistently even in corrosive service environments.
Industrial systems operating in harsh conditions require sealing solutions that resist deformation and thermal stress. Premium Assureaseal SSC Critical Service Gaskets are engineered to perform under demanding pressure and environmental challenges.
Reinforced core construction for high compression strength
Resistance to chemical and hydrocarbon-based media
Pressure-energized sealing components for enhanced reliability
Electrical isolation support for corrosion mitigation
Compatibility with ANSI and API pressure classifications
These features make them suitable for severe service flanges across pipeline and processing operations.

Step-Ko Products designs and manufactures advanced sealing systems for high-pressure, high-temperature applications. Each assembly is produced with strict dimensional control and quality inspection standards. By integrating reinforced materials with precision fabrication, consistent sealing integrity is achieved in the most challenging environments. The focus remains on durability, performance, and long-term corrosion resistance across industrial sectors.
They combine high compression strength with material stability, ensuring consistent performance under pressure and heat.
Yes, advanced material construction allows them to maintain integrity during expansion and contraction cycles.
Their design prevents electrical transfer and reduces metal-to-metal contact that contributes to galvanic activity.
They are engineered to seal raised face, flat face, and ring joint connections effectively.
Oil and gas, petrochemical, refining, and heavy industrial sectors rely on them for dependable operation.
Properly engineered designs resist deformation and maintain sealing strength under sustained pressure.
Precise fit ensures uniform compression and reduces the likelihood of leakage or premature failure.

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