Shiwei Industry And Trade Group Co., Ltd.
Shiwei Industry And Trade Group Co., Ltd.
Products

Chemistry field welded stainless tubing

In demanding chemical processing environments, selecting the right piping solution directly impacts safety, uptime, and compliance. Our Chemical grade welded stainless steel tube series provides consistent longitudinal welds that match base metal properties, minimizing weak points under aggressive media. For high-flow transfer lines and reactor connections, Industrial stainless welded piping for chemistry handles pressures up to 3000 PSI while resisting pitting and crevice corrosion. Our Chemical process stainless steel welded pipe undergoes bead conditioning and passivation to deliver an ultra-smooth internal surface that reduces fouling and simplifies CIP protocols. When routing utilities or protective conduits through spill-prone zones, Chemical facility stainless welded conduit offers a reliable, fully-sealed pathway that insulates cabling from corrosive vapors.

ParameterSpecification
Material options300 series austenitic, duplex, super austenitic
Welding methodAutogenous TIG or plasma, fully fused bead profile
OD tolerance±0.002″ for sizes up to 1-1/2″ OD
Wall thickness tolerance±10% of nominal wall
Testing standardsASTM A1016, EN 10217-7, PED 2014/68/EU
InspectionsBoiler drum, PMI, dye penetrant, positive material identification
Pressure ratingCalculated per ASME B31.3, option for full vacuum
LengthsStraight lengths 20 ft random, or cut-to-size spools
End finishesPlain end, beveled, grooved, or flanged connections

Chemistry field welded stainless tubing fills a critical gap between seamless cost constraints and project delivery schedules. By relying on longitudinally welded production, you secure a near-net shape product that reaches ideal hardness zones without multi-step piercing and pilgering, which reduces lead times by up to 40% compared to seamless equivalents. This product line supports rapid fabrication of modular skids, heat exchanger shells, and instrument tubing racks, all while maintaining the metallurgical integrity required by ASME Section VIII and B31.3 codes. Field welding goes smoothly because the controlled chemistry and low sulfur content of the base strip minimize hot cracking risk during fit-up. Post-weld heat treatment is rarely needed for wall thicknesses below 0.150 inch, which saves installation hours and simplifies onsite procedures. Whether you are expanding an API chemical plant or retrofitting a bioprocess facility, Chemistry field welded stainless tubing delivers the repeatable dimensional accuracy, corrosion resistance, and documentation trail that process engineers demand.

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