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By performing standard non-destructive testing on our LSAW pipes, we ensure that our pipes provide good service to our customers. LSAW steel pipe is an ideal pipeline for large-scale pipeline engineering, oil, water, natural gas transmission, urban pipe network construction and piling.
Process:LSAW, UO(UOE),RB(RBE),JCO(JCOE) Double submerged arc welding
Quality Standards
API 5L Oil and Gas Pipeline
ASTM A53 Standard Specification for Welded and Seamless Black and Hot-Dip Galvanized Steel Pipe
Din 2458 welded steel pipe
EN10210 non-alloy and fine grain steel hot worked structural hollow sections
Cold-formed welded structural hollow sections EN10219 non-alloy and fine-grain steels
GB/T3091 Welded Steel Pipes for Low Pressure Liquid Transportation and Construction
GB/T9711 Steel Pipes for Petroleum and Natural Gas Industries
Steel grade
API 5L PSL1 & PSL2: G R.A, G R.B, X42, X46, X52, X56, X60, X65 X70
EN10219/DN10210: S235, S235JR, S235J2H, S275, S275JR, S355JRH, S355J2H
ASTM A53: GR.A, GR.B
ASTM A252: GR.1, GR.2, GR.3
ASTM A500: G R.A, G R.B, G R.C, G R.D
GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555
GB/T3091, SY/T5037: Q195, Q215, Q235, Q275, Q295, Q345
Coating standard
ANSI/AWWA C104/A21.4 American National Standard for Cement-Mortar Lining for Ductile Iron Pipes and Fittings for Water Use
ISO 21809: Petroleum and natural gas industries-External coatings for buried or underwater pipelines used in pipeline transportation systems
DIN 30670: Polyethylene Coating for Steel Pipes and Fittings
AWWA C210: Liquid Epoxy Coating and Liner for Steel Water Pipe and Fittings
AWWA C213: Internal and External Fusion Bonded Epoxy Coatings for Steel Water Conveying Pipes
Dimensions
Outer diameter: 406.4 mm-1422mm(16 “-56”)
Wall thickness: 8mm-40mm
Length: 6m-12.5m
End: Flat end/square end (straight cut, saw cut, torch cut) or beveled end
Surface: light oil, hot-dip galvanized, black paint, varnish/anti-rust oil, protective coating (epoxy resin, fusion epoxy resin, 3-layer PE)




