Standard：GB/T9711.1 GB/T9711.2 API 5L PSL1 PSL2
Steel Grade：L320/X46 L320N/X46N L320M/X46M L320Q/X46Q
Application：Pipeline Steel pipe for transportation system of petroleum and natural gas industry
Pipeline Steel pipes Type: welded pipes
End: Flat end or beveled, threaded end and socket end.
Connection type:End welding, hoop connection and socket connection.
Surface: Lightly oiled, Hot dip galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, 3-layers PE)
Packing:Plastic plugs in both ends, Hexagonal bundles with several steel strips, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.