Carbon steel pipe hot rolling and cold rolling (drawing) steel pipe.

Hot rolled carbon steel tube general steel pipe, low and medium pressure boiler pipe, high pressure boiler tube, alloy steel, stainless steel pipe, oil cracking pipe, geological steel pipe and other steel pipe and so on.

 

 

Cold-rolled (dial) carbon steel pipe in addition to general steel tube, low medium pressure boiler pipe, high pressure boiler tube, alloy steel, stainless steel pipe, oil cracking pipe, steel pipe, other include carbon thin wall steel tube, alloy thin wall steel pipes,, steel tube.Generally greater than 32 mm hot rolled seamless steel tube diameter, wall thickness 2.5 75 mm, to 6 mm cold rolled seamless steel tube diameter, wall thickness to 0.25 mm, to 5 mm thin wall pipe diameter, wall thickness less than 0.25 mm, cold than hot rolled high dimensional accuracy.

 

Carbon steel pipe raw material is round billet, round tube embryo through cutting machine cutting the growth degree of about 1 meter of billet, and by the conveyor belt to heating furnace.Billet are fed into the furnace heating, the temperature is about 1200 degrees Celsius.

 

Carbon steel pipe, with 10, 20, 30, 35 and 45 high quality carbon steel guitar 16 mn, 5 MNV low alloy structural steel or 40 cr, 30 crmnsi, 45 mn2 and 40 MNB made of alloy steel hot rolled or cold rolled.Made in 10, 20, such as low carbon steel seamless tube is mainly used for fluid pipelines.45, 40 cr made of medium carbon steel seamless pipe manufacturing machinery parts, such as the stress of the automobile and tractor parts.General use of carbon steel pipe to ensure the strength and the flattening test.Hot-rolled steel pipe with hot rolled or heat treatment state delivery;Cold rolled to heat treatment state delivery.

 

Steel pipe after sizing, into the cooling tower, by water spray cooling, steel pipe after cooling, will be straightening.Steel pipe by the conveyor belt to the metal detection after straightening machine (or water pressure experiment) for internal inspection.If the steel pipe internal crack, air bubble, will be detected.Steel pipe quality through rigorous after manual pick.Sprayed with paint after steel pipe quality, number, specification, batch number, etc.