Company news

  • Post time: 09-18-2019

    In the oil and gas pipeline corrosion in the construction process, DSAW steel pipe anti-corrosion surface treatment is to determine the life of one of the key factors, it is ERW steel pipe coating with the premise of whether the combined firm. The study of professional organizations, in addition ...Read more »

  • Post time: 09-10-2019

    There are some customer don’t know how to distinguish the seamless stainless steel pipe and ERW stainless steel pipe. Today, Great Steel Pipe will discuss about differences between seamless stainless pipe and ERW stainless steel pipe. What is the raw material required for manufacturing seam...Read more »

  • Post time: 09-04-2019

    We all know that steel is two elements mixed together: iron and carbon, and the more carbon there is contained in the steel, the stronger it gets when heated. Carbon steel pipe is a steel alloy that contains carbon ranging from 0.12% all  the way to 2%. The percentage of alloy in carbon steel aff...Read more »

  • Post time: 08-28-2019

    Under the welded pipe from the top of the arc, from top to bottom all-position welding technique, the method of welding speed, weld appearance, good welding quality. you can save welding materials, reduce labor intensity, which is a common SMAW can not be compared and now more widely used in larg...Read more »

  • Post time: 08-07-2019

    What is a petroleum steel pipe? The petroleum steel pipe is a long steel with a hollow section and no joints around, and the petroleum cracking pipe is an economical section steel. Role: Widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, automotive dr...Read more »

  • Post time: 06-18-2019

    1. The shoddy thick-walled seamless steel pipe is prone to folding. Folding is a variety of fold lines formed on the surface of thick-walled seamless steel tubes, which often extend throughout the longitudinal direction of the product. The reason for the folding is that the inferior manufacturer ...Read more »

  • Post time: 06-06-2019

    What types of oil casings are there? Different types of casing used in oil extraction: Surface oil casing protects the well from contamination by shallow water and shallow gas, supports wellhead equipment and maintains the weight of the other layers of the casing. The technical oil casing separat...Read more »

  • Post time: 05-31-2019

    What is the use of oil casings? Oil casing is the lifeline for maintaining oil well operations. Due to different geological conditions, the state of the downhole is complicated, and the combined action of tension, compression, bending and torsion stress acts on the pipe body, which puts high requ...Read more »

  • Post time: 02-22-2018

    Recently, the reporter learned from China Iron and Steel Association that in 2017 China exported a total of 2,200,000 tons of scrap steel, while in 2016 it only exported about 1,000 tons, an increase of several thousand times over the same period of the previous year. In 2017, China fully cleared...Read more »

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