Api 5l / Astm A106 / A53 Grad B Seamless Steel Pipe Hot Dip Steel Pipe
To make a seamless pipe, the mill starts with a solid cylinder of steel called a billet. The billet is super-heated in the mill furnace, just to the point where it is about to lose shape.From the furnace, the billet is transferred and pierced. So, when the billet is red hot, the center of the billet is pushed out, creating a hollow cylinder.
Seamless Steel Pipes WITH black painting,beveled ends and plastic caps,mainly used in convey petroleum,gas and other liquid.The black painting can protect pipes out of rust and corrosion.The beveled ends can connect the pipes with flange.
