Ultra-Clean, Exceptionally Smooth Surfaces and Corrosion Resistant

WinTech Ultra High Purity (UHP) stainless steel tubing and fittings is ideal for the Biotech and Pharmaceutical Industries where ultra-cleanliness and extraordinarily smooth surfaces are required for process purity, cleanability and flow characteristics.

WinTech fittings and tubing are produced by an ASME-BPE Certified manufacturer which meet the requirements of the most recent ASME-BPE standard.

All surface finishes are measured to ANSI B46.1 standards and meet or exceed the requirements of ASME-BPE SF-0 through SF-6.

Sanitary Tubing Specifications

ASME-BPE, SF-0 through SF-6 stainless steel sanitary tubing and fittings are produced in accordance with the requirements of ASTM A270-S2 and the newest ASME-BPE standard for manufacturing process, testing, tolerances and surface finishes. Tubes are bright annealed and rapidly quenched in accordance with the specifications. WinTech carries seamless products 1/16” through 2” and welded sizes 1/2” through 8”, and can help with your metric and DIN sizes.

Chemical Composition

Our sanitary tubing is available in 316/316L.  All 316/316L tube is supplied with a Sulfur content of .005 – .017% as specified in ASTM A-270, Supp. S2 for welded tubing and the Sulfur content for seamless is .005 – .012%.

Mechanical and Electropolished finishes available
Electropolishing is an electro-chemical method where a surface layer of approximately 20µm is removed. The removal primarily takes place on the tops of the micro profile. The austenitic structure appears in a very clean condition. The surface has a bright and shiny appearance.  See Electropolished on this site.

Consistent Dimensional Control and End Finishing for Ease of Installation and Orbital Welding
WinTech meets or exceeds ASME-BPE Part DT.

The technical advantages of electropolishing are summarized below:
– Metallurgical cleanliness
– Less friction
– Improved corrosion resistance
– Reduced surface area
– Easy cleaning

Electropolishing of stainless steel started to really take off at the end of the 1960´s as the methods were more and more developed the interest from the industry grew. Today electropolishing is a well-developed, advanced and established method for creating a smooth and clean surface.

Micro-biologically cleanliness and particle control is of greatest importance and absolute necessary in several industrial fields e.g.; semiconductor manufacturing, pharmaceutical manufacturing, space exploration and biotechnology. The demand on process cleanliness with regards to analysis and process gases, water for injection (WFI), chemicals and products within these industries has played a major role.