· Stainless steel pipe is a hollow strip of circular steel, which is widely used in petroleum, chemical, medical, food, light industry, mechanical instrument and other industrial pipelines and mechanical structural parts. In addition, in the same bending, torsional strength, light weight, so it is also widely used in manufacturing machinery parts and engineering structures. It is also commonly used as furniture and kitchenware.

· Stainless steel tubes are divided into seamless tubes and welded tubes according to the production mode. Seamless tubes can be divided into hot rolled tubes, cold rolled tubes, cold drawn tubes and extruded tubes, etc. Cold drawn and cold rolled tubes are the secondary processing of steel tubes; Welded pipe is divided into straight seam welded pipe and spiral welded pipe.

· Stainless steel welded pipe production process:

Raw material - swatch - welding pipe - end - polishing - inspection (printing)- packaging - shipment (warehousing)(decoration welded pipe).

Raw material - article points - welding pipe, heat treatment, correct, straightening, fix the end, pickling, water pressure test, inspection (spurts India) - packaging - shipment (transport) (tube) for piping weld pipe industry.

· Production process of stainless steel seamless tube: Round steel preparation - heating - hot rolling perforation - cutting - pickling - grinding - lubrication - cold rolling - degreasing - solution heat treatment - straightening - cutting - pickling - finished product inspection.