Seamless steel pipe occupies an important position in the social and economic development, and perhaps my friends are not very familiar with it, but it has been widely used in petroleum and chemical management and other aspects, which has created a very important place for people’s daily life,it's very convenient.

①Main production process of hot-rolled seamless steel pipe (main inspection process):Tube billet preparation and inspection → tube billet heating → perforation → pipe rolling → steel pipe reheating → fixed (reduced) diameter → heat treatment △ → finished pipe straightening → finishing → inspection (

①Main production process of hot-rolled seamless steel pipe (main inspection process):Tube billet preparation and inspection → tube billet heating → perforation → tube rolling → waste tube reheating → fixed (reduced) diameter → heat treatment → finished tube straightening → finishing → inspection (no