What is LSAW steel pipe?

Longitudinal blank submerged arc welded pipe (LSAW steel pipe), made of ingot or solid billet made by burr hole, and then made by hot rolling, cold rolling or cold rolling. Straight welded steel pipe plays an important role in China's industry. According to incomplete statistics, there are more than 240 seamless pipe manufacturers in China, about 250 longitudinal welded pipe units, with an annual capacity of about 4.5 million tons. In terms of caliber, < 76mm, 35%, < φ 159-650, 25%. In terms of varieties, 1.9 million tons of general pipes, accounting for 54%; 760000 tons of oil pipelines, accounting for 5.7%; 150000 tons of hydraulic props and precision pipes, accounting for 4.3%; 50000 tons of stainless steel pipes, pipes and pipe bearings for automobiles, accounting for 1.4%.



Welded steel pipe can be divided into precision hydraulic pipe, cold drawn precision steel pipe, precision cold rolled steel pipe, high precision steel pipe and precision bright pipe according to certain classification method and application. Longitudinal welded pipes of different materials and models with different values and functions are used in the process of processing and production, so that they can be used in different fields and industries.