Introduction: Carbon steel seamless steel pipe is a round hollow section steel pipe without seam. Seamless steel pipe is initially a hollow billet made of steel ingot or solid blank, and then become a seamless steel pipe by hot rolling, cold rolling or cold drawing. According to different production methods, seamless steel pipe can be divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, extrusion pipes. They are mainly used for conveying fluid, such as oil, natural gas, coal gas and water. It is also widely used as structural parts and mechanical parts, such as oil drill pipe, car drive shaft, bicycle frame and construction scaffolding etc.

Outside diameter：Φ18-820mm
Wall thickness：2.5-45mm
Standard：API5L, API5CT, ASTM-A106,ASTM-A53, ASTM A179, SY5037-2000, GB/T5711.1-1997
Material：API 5L GR.B ×42,  API 5L GR.B×52,  API 5L GR.B×60,  API 5L GR.B×65,  API 5L GR.B×70,  ASTM A53 GR.A,  ASTM A53GR.B,  ASTM A53GR.C， EN S275, S275JR, S355JRH， Q234, Q345, 10#, 20#, 45#, 12CrMo, 15CrMO
Length：Random length or cut length 6m
End：plain end or bevel end
Surface：Black painting, Hot dip galvanized, Electro galvanized, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy,? Fusion Bond Epoxy, 3-layers PE)
Test:：Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield, strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.