Longitudinally Submerged Arc Welding pipe(abbreviated as LSAW pipe). The Longitudinally Submerged Arc Welding (LSAW) is produced by using a single plate as a raw material, pressing (rolling) the steel plate into a pipe blank in a mold or a molding machine, and adopting double-sided submerged arc welding and expanding the diameter. The finished product has a wide range of specifications, and the weld has good toughness, plasticity, uniformity and compactness, and has the advantages of large pipe diameter, thick pipe wall, high pressure resistance, low temperature resistance and corrosion resistance.

The production process of general seamless steel pipes(smls pipe) can be divided into two types: cold-drawn and hot-rolled. The production process of cold-rolled seamless steel pipes is generally more complicated than that of hot rolling. In the sizing test, if the surface does not respond to cracks, the pipe must be cut by a cutting machine and cut into a blank of about one meter in length. Then enter the annealing process. Annealing needs to be pickled with acidic liquid. When pickling, pay attention to whether there is a lot of blistering on the surface. If there is a lot of blistering, it means that the quality of the steel pipe does not meet the corresponding standards. In appearance, cold-rolled seamless steel pipes are shorter than hot-rolled seamless steel pipes. The wall thickness of cold-rolled seamless steel pipes is generally smaller than that of hot-rolled seamless steel pipes, but the surface looks brighter than thick-walled seamless steel pipes. Much rough, without too many burrs.

Understanding China API 5L X52 Steel Pipe A Comprehensive OverviewChina API 5L X52 steel pipe is a

China's API Oil & Steel Pipe Manufacturers Pioneers in Global IndustryChina has established itself

High-Quality API 5L SSAW Steel Pipes A Foundation for Robust Industrial ApplicationsIn the realm o

Wholesale API 5L SSAW Steel Pipe Suppliers Quality and Reliability EnsuredIn the global steel indu

API 5L X52 Steel Pipe Price List from Leading FactoriesAPI 5L X52 steel pipes, a grade under the A

API 5L X52 Carbon Steel Pipe Manufacturing Quality and Expertise API 5L X52 Carbon Steel Pipes are

API 5L X60 PSL2 Steel Pipe Factories A Comprehensive OverviewAPI 5L X60 PSL2 steel pipes are a cri

API 5L X65 PSL1 Carbon Steel Pipe Suppliers A Comprehensive OverviewAPI 5L X65 PSL1 Carbon Steel P

API 5L X42 Steel Line Pipe Suppliers Quality and Reliability EnsuredIn the world of oil and gas in

High-Quality API 5L PSL2 Supplies Ensuring Unmatched Performance and ReliabilityIn the realm of pi

Wholesale API 5L X42 Steel Line Pipe Exporters Key Players in Global Infrastructure DevelopmentIn

High-Quality ERW Steel Pipes ASTM A53A Grade 8 Factories Pioneering ExcellenceIn the realm of indu

API 5L Seamless Steel Pipe Suppliers A Comprehensive Guide to Wholesale SourcesIn the realm of ind

API 5LX52 Welded Steel Pipe Exporters Pioneers in Global Petroleum Industry In the dynamic world o

Wholesale API 5L B Carbon Steel Pipe Exporters Quality and Reliability in Global TradeIn the dynam

API Steel Pipe Price and Leading Suppliers An In-Depth OverviewAPI (American Petroleum Institute)

China's Pipe Factories and Mild Steel Manufacturers A Global Force in Industrial ExcellenceIn the

API 5L Steel Pipe Price Manufacturers An In-depth OverviewAPI 5L steel pipes, an essential compone