жаңалықтар

  • Post time: Sep-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 ...Толығырақ «

  • Post time: Sep-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...Толығырақ «

  • Post time: Sep-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...Толығырақ «

  • Post time: Aug-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...Толығырақ «

  • Post time: Aug-23-2019

    LSAW in leaflets plate as raw material, the steel plate in the mold or molding machine pressure (volume) into using double-sided submerged arc welding and flaring from production. A wide range of the finished product specifications, weld toughness, ductility, uniformity and dense, with a large di...Толығырақ «

  • Post time: Aug-16-2019

    Precision seamless steel pipe is a kind of high-precision steel pipe after cold drawing or hot rolling. Due to the advantages of precision seamless steel pipe on the inner and outer walls of precision seamless steel pipe, high pressure and no leakage, high precision, high smoothness, no deformati...Толығырақ «

  • Post time: Aug-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...Толығырақ «

  • Post time: Jun-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 ...Толығырақ «

  • Post time: Jun-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...Толығырақ «

123456 Next > >> Page 1 / 7
WhatsApp Online Chat !