Products Description
LSAW steel pipe (Longitudinally Submerged Arc Welding abbreviated LSAW) is a professional expression term for longitudinally submerged arc welding, which is made of a single medium and thick plate as raw material, the steel plate is pressed (rolled) into a tube billet ina mold or forming machine, and is produced by double-sided submerged arc welding and expanded diameter.
Specification
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Product Name |
LSAW Steel Pipe |
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Grade |
CA55, CB60, CB65, CB70, CC60, CC65, C70,Gr.B/L245, X42/L290, X46/L320, X52/L360, X60/L415, X65/L450, X70/L485 |
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Standard |
API 5L, ASTM A106, ASTM A53, ASTM A671/671M, ASTM A672/672M |
Product Feature
Main features of LSAW steel pipe:
(1) The steel pipe has a longitudinal weld, and the inner and outer welds are welded by a submerged arc welding.
(2) Using the pre-welding and post-fine welding process, the welding process is stable and the weld quality is high.
(3) The product specification range is large, can produce small diameter, large wall thickness can also produce large diameter, large wall thickness steel pipe.
Advantage
The finished LSAW steel pipe has a wide range of specifications, good toughness, plasticity, uniformity and density of the weld, and has the advantages of large pipe diameter, pipe wall thickness, high pressure resistance, low temperature resistance and corrosion resistance. In the construction of high strength and high quality long distance oil and gas pipelines, most of the steel pipes needed are large diameter thick wall straight seam submerged arc welded pipes.
Submerged arc welding (including submerged arc surfacing and electroslag surfacing) is a welding method in which the arc is burned under the flux layer. Its inherent advantages of stable welding quality, high welding productivity, no arc light and little smoke make it the main welding method in the production of important steel structures such as pressure vessels, pipe section manufacturing, box beam and column.
application
Usage of LSAW Hot Rolled Steel Pipes are to be used for conveying gas, water, petroleum for oil and natural gas industries.
Our company cooperates with major steel mills and has advanced production lines for sheet and pipe materials, complete testing equipment, and a strict quality assurance system.
We specializes in various kinds of steel concerned building materials. Such as Galvanized round pipe, square/rectangular/Irregular pipe, Scaffold pipe, various steel coils/stripe/plate, PC wire, PC strands, rebar, photovoltaic bracket, Angle steel, U/H/C-shaped steel and so on.
Especially our patented products-Rare Earth Weather & Corrosion Resistant Steel, it is a green, environmentally friendly, and corrosion-resistant new type of steel that can replace traditional galvanizing and rust prevention processes.
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