Gas pipeline 3PE anti-corrosion steel pipe L360M/N pipeline steel pipe spot manufacturer Guanghui Pipe Industry quotation

Description :

　　Our company specializes in pipeline pipes, including L245N, L360N, L290N, L415, L245, L360, L415, L450, L485, X42, X52, X60, X56, X65, X70, and X80. Seamless pipes: 2045Q345B, Q345C, Q345D low-temperature pipes, Q345E low-temperature pipes, 15CrMoG, 12Cr1MoVG, Cr5Mo alloy pipes, high-pressure boiler pipes, fertilizer special pipes, petroleum cracking pipes and other seamless steel pipes.

　　Pipeline pipe is used to transport oil, gas, or water from the shaft to the oil and gas industry enterprises through pipeline pipes. Pipeline pipes include seamless and welded pipes, with flat ends, threaded ends, and socket ends at the pipe ends; The connection methods include end welding, clamp connection, socket connection, etc. The main materials of this pipe are steel grades B, X42, X56, X65, X70, etc. For a long time, the company has sold domestic steel pipe production enterprises Baosteel and Chenggang The products of companies such as Baosteel, Panzhihua Iron and Steel, Hualing Steel Pipe, Wuxi Steel Plant, Jiangsu Steel Plant, etc. provide reliable and stable support for the company's operations.

　　High frequency straight seam welded steel pipes can be divided into straight seam high-frequency resistance welded steel pipes and straight seam high-frequency induction welded steel pipes according to different high-frequency welding processes. The forming process generally adopts roll bending cold forming method.

　　High frequency straight seam welded steel pipes are generally produced with smaller diameters, typically below 660mm or 26 inches in outer diameter. Its characteristics are: fast welding speed, for example, for steel pipes with an outer diameter of less than 1 inch, the welding speed can reach 200 meters per minute. For steel pipes with an outer diameter of 25 inches, the welding speed can also reach over 20 meters per minute. The welding method is compression welding, not fusion welding. Compared with fusion welding, the heat affected zone of welding is relatively small, and it has less impact on the base material. The strength and toughness of the welded joint after welding are different from those of the parent material. According to the usage requirements, the material can be cleaned or not cleaned for internal and external welding burrs. Welding can be performed on workpieces without cleaning, and can be done on thin-walled pipes or metal pipes.

　　High frequency straight seam welded steel pipe process: longitudinal cutting - uncoiling - strip steel leveling - head and tail cutting - strip steel butt welding - active sleeve storage - forming - welding - deburring - sizing - flaw detection - flying cutting - initial inspection - steel pipe straightening - pipe section processing - shu pressure test - flaw detection - printing and coating - finished product. High frequency straight seam welded steel pipes are mainly used in engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, and urban construction. Used for liquid transportation: to supply and discharge water. Used for gas transportation: steam, liquefied petroleum. Used for structural purposes: as pile driving pipes, as bridges; Pipes for docks, roads, building structures, etc.

　　The straight seam resistance welded steel pipe, abbreviated as ERW in English, has the characteristics of low production cost, material saving, and easy automation. The production process is as follows: longitudinal cutting - uncoiling - strip steel leveling - head and tail cutting - strip steel butt welding - active sleeve storage - forming - welding - deburring - sizing - flaw detection - flying cutting - initial inspection - steel pipe straightening - pipe section processing - pressing test - flaw detection - printing and coating - finished product. The main factors affecting the resistance welding of steel pipes with straight seams include input heat, welding pressure, welding speed, opening angle, and placement of the resistance resistor. Widely used in water supply and drainage engineering, petroleum and gas engineering, and can also be used as pile driving pipes and bridges; Dock, road, building structure pipes, etc.

　　The welding process used for submerged arc welded straight seam steel pipes is submerged arc welding technology, which uses filler welding and particle protection flux submerged arc welding. The diameter produced can reach 1500mm. LSAW is the English abbreviation for submerged arc welded straight seam steel pipe. The production process of submerged arc welded straight seam steel pipe includes JCOE forming technology and roll forming submerged arc welding technology. When the diameter is large, two steel plates may be used for rolling, which can result in the formation of double welds. The applicable standards include GB/T3091-2008 low-pressure fluid steel pipe production standard, GB/T9711.1-2-1997 petroleum and natural gas steel pipe production and use standard, and the American pipeline steel pipe execution standard. Production materials: Q195A-Q345E; 245R；Q345QA-D； L245-L485； X42-X70。 The pressure bearing parameters mainly include 2ST/T, where S is the yield strength and T is the wall thickness. Submerged arc welding has developed into two types: double wire submerged arc welding and multi wire submerged arc welding, with even higher efficiency. Widely used in steel structures, pile driving, fluid transportation, long-distance pipelines, and other places.

　　Submerged arc welded steel pipes and their standard classification: Spiral seam submerged arc welded steel pipes for pressure fluid transportation (SY5036-83) are mainly used for pipelines transporting petroleum and natural gas; Spiral seam high-frequency welded steel pipe for pressurized fluid transportation (SY5038-83), welded by high-frequency lap welding method, used for spiral seam high-frequency welded steel pipe for pressurized fluid transportation. Steel pipes have strong pressure bearing capacity, good plasticity, and are easy to weld and process into shapes; Spiral seam submerged arc welded steel pipes (SY5037-83) for general low-pressure fluid transportation are made using double-sided automatic submerged arc welding or single-sided welding methods, and are used for submerged arc welded steel pipes for general low-pressure fluid transportation such as air and steam.

　　The commonly used standards for submerged arc welded steel pipes are generally divided into: SY/T5037-2000 (departmental standard, also known as spiral seam submerged arc welded steel pipes for ordinary fluid transport pipelines), GB/T9711.1-1997 (national standard, also known as technical delivery conditions for petroleum and gas industry transport steel pipes), API-5L (American Petroleum Institute, also known as pipeline steel pipes); It is divided into two levels: PSL1 and PSL2, and SY/T5040-92 (spiral seam submerged arc welded steel pipes for piles).

　　Seamless steel pipe refers to pipeline steel seamless steel pipe - pipeline steel seamless steel pipe, seamless steel pipe pipeline steel material: GR.B，X42，X46，52，X56，X60，X65，X70。 Pipeline pipes are used to extract oil and gas from the ground, shui， Transported to petroleum and natural gas industry enterprises through pipeline pipes. Pipeline pipes include seamless pipes and welded steel pipes, with flat ends, threaded ends, and socket ends; The connection methods include welding, clamp connection, socket connection, etc. With the development of seamless steel pipe technology and the advancement of forming and technology, the application scope of seamless steel pipes for pipelines is gradually expanding, especially in large-diameter seamless steel pipes. Coupled with cost factors, seamless steel pipes for pipelines have become dominant in the field of seamless steel pipes for pipelines, and the development of seamless steel pipes for pipelines. Cangzhou Guanghui Pipe Industry exports approximately 1 million tons of seamless pipeline pipes annually, with steel grades including GR.B, X42, X46, 52, X56, X60, X65, X70.

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