Carbon Steel Straight Seam Pipe

  Product NameQ235 material straight seam welded pipe carbon steel welded tubeFabrication StandardAPI 5L/5CT ASTM A53 A252 A500  EN10217 EN10219 Material GradeGR. A/B x42 x52 x65  GR.2 GR.3 S235 S355Out DiameterDN5 - DN80 00Wall Thickness3mm - 50mmLength max 75 MtrSurfacebare or with coatingCoatingFBE, 3LPP, 3LPE, Epoxy, Coal Tar ExpoxyPackageby piece or in bundlesMinimum Order Quantity5 TonsEZS Advantage1.regular sizes in stock over 2000 tons for immediate delivery2.small quantity with factory rate3.quality certificate as per EN10204 3.1b issued by manufacturer4.expert technical and export/import document consultant and support5. on-time response by email, skype, website and online messagesStraight seam pipe is a kind of welded steel pipe, which refers to the steel pipe with the weld and the steel pipe longitudinally parallel. According to the wall thickness, there are thin-walled straight seam pipes and thick-walled straight seam pipes; According to the shape, there are round tubes, square tubes or special-shaped tubes; According to the use, there are general welded pipes, galvanized welded pipes, oxygen blowing welded pipes, wire casing pipes, metric welded pipes, idler pipes, deep well pump pipes, automotive pipes, transformer pipes, electric welded thin-walled pipes, electric welded special-shaped pipes and spiral welded pipesStraight seam pipe refers to a steel pipe whose weld is longitudinally parallel to the steel pipe. It is also generally referred to as straight seam welded pipe or straight seam steel pipe. Straight seam pipe is rolled by a high-frequency welding unit and welded by straight seam. The specifications of straight seam pipes are expressed by nominal caliber, and can be divided into thin-walled straight seam pipes and thick-walled straight seam pipes according to wall thickness. According to the shape, it can be divided into round, square or special-shaped tubes.                                                                                                                                                                                                                                         Classified by weld shape It can be divided into straight seam welded pipe and spiral welded pipe Straight seam welded pipe: simple production process, high production efficiency, low cost and rapid development. Spiral welded pipe: the strength is generally higher than that of straight seam welded pipe, and a narrower billet can be used to produce welded pipes with larger pipe diameters, and welded pipes with different diameters can also be produced with the same width of blank. However, compared with the straight seam pipe of the same length, the weld length is increased by 30~100%, and the production speed is lower. Therefore, most of the smaller diameter welded pipes use straight seam welding, and the large-diameter welded pipes mostly use spiral welding. Categorized by use According to the use, it is divided into general welded pipe, galvanized welded pipe, oxygen blowing welded pipe, wire casing, metric welded pipe, idler pipe, deep well pump pipe, automotive pipe, transformer pipe, electric welded thin-walled pipe, electric welded special-shaped pipe and spiral welded pipe. General welded pipe: General welded pipe is used to transport low-pressure fluid. Made of Q195A, Q215A, Q235A steel. It can also be manufactured from other mild steels that are easy to weld. Steel pipe to carry out water pressure, bending, flattening and other experiments, there are certain requirements for surface quality, usually the delivery length is 4-10m, often require fixed length (or double ruler) delivery. The specifications of the welded pipe are expressed with a nominal caliber (millimeters or inches) The nominal caliber is different from the actual one, the welded pipe has two kinds of ordinary steel pipe and thickened steel pipe according to the specified wall thickness, and the steel pipe is divided into two kinds of threaded and unthreaded according to the form of the pipe end. Galvanized steel pipe: In order to improve the corrosion resistance of steel pipe, the general steel pipe (black pipe) is galvanized. Galvanized steel pipe is divided into hot-dip galvanized and electric steel zinc, hot-dip galvanized galvanized layer is thick, electro-galvanizing cost is low. Oxygen blowing welded pipe: used as a pipe for steelmaking oxygen blowing, generally using small-diameter welded steel pipe, the specification is from 3/8 inches to 2 inches eight. Made with 08, 10, 15, 20 or Q195-Q235 steel strip. In order to prevent corrosion, some are treated with aluminum. Wire casing: is also ordinary carbon steel welded steel pipe, used in concrete and various structural power distribution projects, commonly used nominal diameter from 13-76mm. The walls of the wire casing are thin, and most of them are coated or galvanized after use, requiring a cold bending test. Metric welded pipe: the specification is in the form of seam