There are two modes of seamless steel pipe production, hot rolled and cold rolled, and there is a slight difference between two approaches. Next, Prime Steel Pipe will introduce those respectively for all of you.
Hot-rolled seamless steel pipe production process:
1. Hot-rolled (extruded seamless steel pipe): round tube → heating → perforation → three roll inclined rolling, rolling or extrusion → release → sizing (or reducing diameter) → cooling → straightening → water pressure test (Or flaw detection) → mark → storage
Cold-rolled seamless steel pipe production process:
2. Cold drawn (rolled) seamless steel pipe: round tube → heating → perforation → start → annealing → pickling → oil (copper) → multi-pass cold drawn (cold-rolled) → billet → heat treatment → straightening → water pressure test (flaw detection) → mark → storage
Prime Steel Pipe has over 20 years to manufacture seamless steel pipe, we can provide the highest quality and the best price. If you are interested in our products, please contact us right now.