The difference between DIN 2391 precision pipe and seamless pipe

　　Shengtian Group is DIN 2391 seamless precision pipes of manufacturer and exporter,Steel pipe manufacturers will introduce to you the differences between DIN 2391 precision steel pipes and seamless steel pipes.

　　The difference between DIN 2391 precision pipe and seamless pipe:

　　Due to the advantages of no oxide layer on the inner and outer walls of the precision tube, no leakage under high pressure, high precision, high finish, no deformation during cold bending, flaring, flattening without cracks, etc., it is mainly used to produce pneumatic or hydraulic components. Products, such as air cylinders or oil cylinders , It can be seamless pipe or welded pipe.

　　The main feature of seamless pipes is that they have no welded seams and can withstand greater pressure. The product can be very rough as-cast or cold-drawn, and the precision steel pipe mainly has strict tolerance and roughness of inner hole and outer wall size.

　　DIN 2391 Precision pipe is the carbon, alloy or stainless steel pipe with high precision sizes. Usually it has been made through hot rolling or cold drawn (cold rolling) processes. So precision pipe is a kind of seamless pipe.

　　characteristics:

　　1. The outer diameter is smaller.

　　2. High precision, can do small batch production.

　　3. The cold drawn finished product has high precision and good surface quality.

　　4. The cross-sectional area of the steel pipe is more complicated.

　　5. The performance of the steel pipe is superior, and the metal is relatively dense.

　　DIN 2391 seamless precision pipes is designed with several advantages:inside and outside surface no oxide coating,It could bear high pressure, no leaking,strict less tolerance;surface smooth,No reformation in cold bending, no cracks during flaring test, and flattening test.with these advantages it is widely used for manufacturing the pneumatic parts and hydraulic components.