Introduction:Straight seam welded pipe, is a kind of pipe with welded seam longitudinally parallel to the steel pipe, it is made by rolling up hot-rolled or cold-rolled steel coil to form a round steel pipe then weld together using the welding equipment. (It is known as the straight seam line). Straight seam welded pipe production process is of simplicity, high production, efficiency and low cost. According to the production process, straight seam steel pipe can be divided into high-frequency straight seam steel pipe (ERW pipe) and submerged arc straight seam steel pipe (LSAW pipe). Straight seam steel pipe is mainly used in water works, electricity, agricultural irrigation, urban construction for conveying of gas, steam, liquefied petroleum gas etc.

Outside diameter：Φ72-1020 mm 
Wall thickness：3-40mm
Standard：API5L, API5CT, ASTM-A106,ASTM-A53, SY5037-2000, GB/T5711.1-1997 , BS1387-85, JIS-G344
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 A53 GR.B, ASTM A53 GR.C, EN S275, S275JR, S355JRH, Q235A，Q235B、0Cr13、1Cr17、00Cr19Ni11、1Cr18Ni9、0Cr18Ni11Nb、16Mn、20#、Q345、L245、L290
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.