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.

Wholesale ERW Carbon Steel Pipe Exporters A Global Network of Quality and ReliabilityIn the global

China's Large Water Pipe Construction Exporters Pioneering Global Infrastructure DevelopmentChina

Wholesale ERW Black Round Steel Pipe Suppliers Quality and Reliability EnsuredIn the global steel

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

A Comprehensive Overview of Leading Wholesale LSAW, ERW, and Spiral Welded Steel Pipe Manufacturers

Wholesale Welded & Seamless LSAW Steel Pipes A Global Export PerspectiveIn the global steel indust

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

The Pivotal Role of Wholesale Pipe Piling Exporters in Global Infrastructure DevelopmentIn the rea

Wholesale Carbon Steel Pipes for Robust Construction Projects Unleashing the Strength of Suppliers

Understanding the Role of Wholesale Casing Pipe Suppliers in the Global Oil and Gas IndustryIn the

Wholesale HFW Steel Pipe Suppliers A Key Pillar in Global Infrastructure DevelopmentHigh Frequency

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

Exploring the World of Wholesale Mild Steel ERW Pipes from Leading FactoriesIn the global industri

Embracing the Craftsmanship of Wholesale Big Water Pipe Manufacturing In the realm of smoking acce

Global Wholesale Galvanized Steel Pipe Exporters A Vital Link in Infrastructure DevelopmentGalvani

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

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