Stainless Steel Seamless Pipe

Stainless steel seamless pipe is designed for applications where high strength, reliability, and consistent performance are critical. Manufactured without a longitudinal weld seam, seamless pipe provides a uniform grain structure and wall thickness, reducing potential weak points and making it well suited to higher-pressure and demanding service conditions. This type of pipe is commonly specified where safety, durability, and long-term performance are essential.

Supplied in standard 6 metre lengths, seamless pipe is widely used across industrial, marine, chemical processing, and wash-down environments. Typical applications include pressure pipework, fluid and gas transfer systems, process lines, and installations exposed to fluctuating temperatures or mechanical stress. The absence of a welded seam also improves resistance to fatigue and enhances overall structural integrity under load.

This range is stocked in mill finish Grade 316 stainless steel with Schedule 80 (SCH80) wall thickness, providing increased strength and pressure-handling capability compared with lighter schedules. Grade 316 stainless steel contains molybdenum, which significantly improves resistance to chlorides, salt spray, and aggressive chemicals. This makes it an excellent choice for marine installations, coastal environments, chemical processing facilities, and hygienic wash-down areas where corrosion resistance is critical.

The mill finish provides a clean, industrial appearance suitable for structural and process applications where appearance is secondary to performance. It also allows for further surface treatment or polishing if required for specific installations. Consistent outside diameter and wall thickness ensure reliable fit-up with compatible fittings, flanges, and welded connections, helping reduce installation time and rework.

Pipe sizes are designated by nominal bore (NB) and inch size, with corresponding outside diameter and wall thickness determined by the schedule. It is important to confirm these dimensions to ensure compatibility with existing systems, pressure ratings, and design specifications.

For projects requiring dependable mechanical strength, high corrosion resistance, and pressure capability, Grade 316 seamless stainless steel pipe in SCH80 is a proven, professional solution. Select the required size by NB or inches and verify the OD and wall thickness to suit your system requirements.