Seamless steel tube, made of whole metal, without seams, so called seamless steel tube.According to the production method, seamless tube divided hot rolled tube, cold rolled tube, cold drawing tube, extruded tube, top tube, etc .Our product is cold rolled or cold drawing then honed or SRB(skived rolled burnished) ,the surface polished some lathed.
Seamless steel pipe is mainly used for petroleum geological drilling pipe, petroleum chemical cracking pipe, boiler tube, bearing tube and automobile, tractor and aviation with high precision structural steel pipe.
|Standard||DIN2391, EN10305, ASTM A519, GB/T 8713, GB/T3669...|
|Material||20# ,45# ,Q345B,Q345D,25Mn,27sIMn,E355/st52, SAE1026...|
|I.D Tolerance||H8 H9|
|Length||3-6m (Customers usually choose the 4~5.8m)|
|Surface||polished or coating|
|Delivery time||25-45 days|
|Packing||Bundled with knitted plastic bag, wooden cases or according to customers' request.|
|application||Fluid and gas transport,decoration, construction,medical equipment, aviation,
boiler heat-exchanger and other fields