LSAW steel pipe (LASW steel tube) or Longitudinal Submerged-arc Welded steel pipes are used for the transmitting of water, natural gas, or petroleum. Our LSAW steel pipes are available in wall thicknesses and diameters. We are among the leading manufacturers and suppliers of LSAW pipes and tubes in China, welcomed by customers in many countries of the world. 

Quality Standard:

ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A252 WELDEDAND SEAMLESS STEEL PIPE PILES

API 5L LSAW Line Pipe

BS: 1387 Steel Tubes for use for Water, Gas, Air and Steam

DIN 2458 WELDED STEEL PIPES AND TUBES

EN10217 Welded steel tubes for pressure purposes. Technical delivery conditions. Non-alloy steel tubes with specified room temperature properties

SAW SSAW:

SY/T5037 Spiral submerged arc-welded steel pipe for pipelines for low pressure field fluid service

SY/T 5040 Spiral submerged arc-welded steel pipe piles

CJ/T 3022 Spiral submerged-arc welded steel pipe for municipal heat supply

ANSI/AWWA C104/A21.4 American National Standard for Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water

ISO 21809 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems

DIN 30670 Polyethylen coatings of steel pipes and fittings

Steel Grade:

BS:1387, EN10217:S185, S235,S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44, ST52

ASTM A 53: Gr. A, Gr B, Gr C, Gr.D

API 5L: A, B, X42, X46, X52, X56, X60, X65 X70

GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555

GB/T3091, SY/T5037, SY/T 5040,CJ/T 3022:Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8

Size:

LSAW, DSAW: 

Outer Diameter: 18mm-1500mm

Wall Thickness:2mm-50mm

End: Plain or beveled.

Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy,Fusion Bond Epoxy, 3-layers PE)