What is a straight seam welded pipe? Straight seam welded pipe is a steel pipe with a straight weld seam parallel to the longitudinal direction of the steel pipe, also known as a straight seam steel pipe, which is made by bending a steel plate or strip and then welding the joints. The production process of straight seam welded…
Read MoreThe application of steel pipes in marine engineering is very common. There are roughly three types of steel pipes in the two major systems of shipbuilding and marine engineering: steel pipes in conventional systems, steel pipes used in construction, and steel pipes for special purposes. Different ships and marine projects have both conventional and special systems. The service life…
Read MoreBefore purchasing large-diameter straight seam steel pipes (LSAW), you should follow the pre-designed specifications, lengths, materials, wall thicknesses, welding standards and weld requirements, which must be communicated well before purchasing. 1. The first is the specification. For example, 800mm is also called DN800, including 820mm and 813mm of A and B series, or the outer diameter of 800mm must…
Read MoreWeld leveling of straight seam steel pipe (lsaw/erw): Due to the impact of the welding current and the influence of gravity, the internal weld of the pipe will protrude, and the external weld will also sag. If these problems are used in an ordinary low-pressure fluid environment, they will not be affected. If it is used in high temperature,…
Read MoreStraight seam welded pipe: a steel pipe with the weld seam parallel to the longitudinal direction of the steel pipe. According to the forming process, it is divided into high frequency straight seam steel pipe (erw pipe) and submerged arc welded straight seam steel pipe (lsaw pipe). 1. Construction preparation before use of straight seam welded pipe The pipeline…
Read MoreThere are many kinds of base materials for anti-corrosion steel pipes, such as spiral steel pipes (ssaw), straight seam steel pipes, seamless steel pipes, etc. Therefore, the quality of anti-corrosion steel pipes must be judged from the base material and anti-corrosion quality. 1. Anticorrosion (1) The appearance is delicate and the workmanship is good, without burrs. (2) The internal…
Read More1. Spiral submerged arc welded steel pipe (SSAW) and longitudinal submerged arc welded steel pipe (LSAW) In the 1950s and 1960s, spiral steel pipes were widely used in oil and gas pipelines. In the 1970s and 1980s, they were severely challenged by longitudinal submerged arc welded steel pipes (LSAW steel pipe) and ERW steel pipes. So far, spiral steel…
Read More3PE anticorrosive steel pipe base materials include seamless steel pipe, spiral steel pipe and straight seam steel pipe. Anti-corrosion pipelines can be divided into two categories, lined with anti-corrosion steel pipes and outer-wall anti-corrosion steel pipes. The lining anti-corrosion mainly includes cement mortar-lined anti-corrosion steel pipe, which has more applications and lower cost. The cement mortar-lined anti-corrosion steel pipe…
Read MoreXINYUE STEEL GROUP set up several production bases in Tianjin & Hebei Province, manufacturing ERW Steel Pipe, SSAW Steel Pipe, LSAW Steel Pipe, Seamless Steel Pipe, Scaffolding system and couplers, RHS, SHS, etc.
