Colded finished welded & seamless large diameter heavy wall stainless steel pipe is used for running water, natural gas, petroleum, chemical engineering, communication, power, Marine engineering industries, high temperature, high pressure or corrosion environment. stainless steel 304, 304L, 316L, 317L, 321, 310S and duplex steel 2205 grades, pipe dimention complying with ANSI pipe schedule B36.19&B36.10.
- NPS: max 40″
- SCH: max Sch160
- Length: max 12000 mm
- Type: welded and seamless
- Specification:A312, A999, EN10217-7, EN10216-5
- Grades: TP304, TP316L, TP321
- manufacturer: cold rolling, cold drawing.
- Surface: as welded, annealing pickling, bright annealing, polishing
For welded pipe, NPS 14 and smaller shall have a single longitudinal weld, Welded pipe of a size larger than NPS 14 shall have a single shall be produced by forming and welding two longitudinal weld, all weld tests, examinations, inspections, or treatments shall be performed on each weld seam, all the pipe should been finished in heat treatment.
large diameter heavy wall stainless steel pipe specifications
- A312 – Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
- DIN 17455 – welded circular stainless steel tubes
- DIN 17456 – Seamless circular Austenitic stainless steel tubes for general service
- DIN 17457 – Welded circular Austenitic stainless steel tubes subject to special requirements
- DIN 17458 – Seamless circular Austenitic stainless steel tubes subject to special requirement
- DIN 17459 – Seamless circular high-temperature austenitic stainless steel tubes
- EN 10216-5 – Seamless Stainless Steel Tube
- EN 10217-7 – Welded steel tubes for pressure purposes–Technical delivery conditions–Part 7:Stainless steel tubes
- JIS G3468 – Large diameter welded stainless steel pipes
- GOST 9941- Seamless stainless steel tubes, cold and hot finished
DONGSHANG STAINLESS specialized in stainless steel pipe & tube in China more than 10 years, pipe sizes range is large diameter with heavy wall thickness, as request, thin wall pipe can been produced with various dimention to meet kinds of usage, each year, we produce stainless steel pipe & tube more than 5000 tons, exporting all over the world.