SA106B seamless steel pipe is mainly used for the heating surface pipes of low and medium pressure boilers (the working pressure is generally not greater than 5.88Mpa and the working temperature is below 450℃); SA106B seamless steel pipe is used for high-pressure boilers (the working pressure is generally above 9.8Mpa, working Heating surface pipes, economizers, superheaters, reheaters, petrochemical industry pipes, etc. whose temperature is between 450℃ and 650℃.
SA106B seamless steel pipe manufacturing process:
SA106B seamless steel pipe hot rolling (extruded seamless steel pipe): round tube billet→heating→perforation→three-roll cross rolling, continuous rolling or extrusion→tube removal→sizing (or reducing)→cooling→straightening→water Compression test (or flaw detection) → mark → warehousing.
SA106B seamless steel pipe cold drawing (rolling): round tube blank → heating → piercing → heading → annealing → pickling → oiling (copper plating) → multi-pass cold drawing (cold rolling) → billet tube → heat treatment → straightening → Hydraulic test (flaw detection) → mark → warehousing.
