5- The steel pipe has the same furnace number, the same steel grade, the same specifications.4- The same bundle(batch) of steel pipe should be came from the same furnace.3- Bundled signs should be uniform and consistent.2- Should be avoided by the steel strapping and transport damage.1- Plastic caps plugged at the two sides of pipe ends.Petroleum, gas and other fluids conveying Seamless circular unalloyed steel tubes subject to special requirementsĬhemical Composition and Mechanical Properties Seamless Steel Pipe is made from a solid round steel billet which is heated and pushed or pulled over a form until the steel is shaped into a hollow tube. Seamless steel tube for elevated temperture Seamless ferritic alloy-steel pipe for high-temperature serviceĪlloy steel forgings for pressure and high-temperature partsĪPI Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70 Seamless and welded carbon and alloy steel pipe intended for use at low temperatures. Seamless alloy-steel boiler, superheater, and heat-exchanger tubes Seamless Medium-carbon boiler and superheater tubes Seamless carbon steel boiler tubes for high pressure Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes Seamless carbon steel for high temperature service Maximum thickness: 60mm mininmum thickness: 1.65mmīlack and hot-dipped zinc-coated steel pipes welded and seamless Product Details: Size Maximum diameter: 48" (1219.2mm) minimum diameter: 1/8" (10.3mm) The production of our seamless pipes is tightly regulated and all of the pipes we stock have been fully tested to international standards to ensure we only supply the highest quality products. Seamless steel pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow - liquids and gases (fluids), slurries, powders and masses of small solids. Seamless steel pipe, as the name suggests, is a pipe without a seam or a weld-joint. Seamless pipes are considered superior to welded pipes as they are built using monolithic steel billets, with intrinsic mechanical strength, without seam welds. The seamless steel pipe is made of carbon steel, alloy steel, stainless steel ingot or solid tube blank, and then is made by hot rolling, cold rolling or cold drawing. Introduction What is a seamless steel pipe?Ī seamless steel pipe is a circular pipe having a hollow section and no seams around it.
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