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rectangular steel pipe

Professional management of various materials of stainless steel, pipes, steel pipes, steel, profiles, hardware and electrical materials, etc., widely used in petroleum, petrochemical, pharmaceutical, electric power, chemical, gas, heating, metallurgy and other industries.

  • Commodity name: rectangular steel pipe
  • Commodity ID: 1083670592096980992
  • Product Description
  • Q345B rectangular tube is also called Q345B rectangular tube, 16Mn rectangular tube, Q345 rectangular tube, square rectangular tube, rectangular tube, seamless rectangular tube, stainless steel rectangular tube, square rectangular tube, Q345B rectangular tube, large diameter thick wall rectangular tube, Q345C Rectangular pipe, stainless steel square rectangular steel pipe, seamless square rectangular steel pipe and other rectangular pipe products; Q345B rectangular pipe implements the national standard GBT 6728-2002. The size, shape, weight and allowable deviation of cold-formed hollow section steel for structure are produced, which is Q345B strip steel Rolled through process treatment. Q345B rectangular tube lies in its material Q345B material (low alloy) production and processing, which is very different from ordinary rectangular tube in raw material (Q195, Q215, Q235). Generally, Q345B strip steel (low alloy) is unpacked. , flattened, crimped, welded to form a round tube, and then rolled into a square tube from the round tube and then cut into the required length. The usual length is 6 meters, and 12 meters can be processed according to customer requirements. Generally, the small size is 50 pieces per package, and the large size is 4 pieces per package, and the weight is controlled at about 3 tons. Q345B rectangular tubes in stock are mostly in the large size of 80MM*80MM-500MM*500MM, and the thickness is 3MM-16MM.

Our company specializes in various materials of stainless steel, alloy steel and carbon steel pressure pipe fittings, pressure pipe flanges, metal hoses, soft connections, wear-resistant pipes, anti-corrosion pipes, thermal insulation pipes, supports and hangers, and cable bridges for conveying machinery; Sales of various materials of stainless steel, alloy steel and high temperature resistant, high pressure steel pipes, steel materials, profiles, hardware and electrical materials of special materials. The company has always been based on the principle of quality first, reasonable price, customer first, considerate service, giving customers profits, small profits but quick turnover, and honesty and trustworthiness as its purpose. Over the years, our company has established a stable supply system and a good sales system with users. Our company's products have been widely used in petroleum, petrochemical, pharmaceutical, electric power, chemical, gas, heating, metallurgy and other industries.

Production Workshop

The company attaches great importance to product quality, and strictly controls everything from raw materials entering the factory to re-inspection. It has self-inspection capabilities for chemical analysis, performance testing, non-destructive testing and other inspection items of materials, ensuring the correctness and rigor of product process links.

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Non-destructive Testing

We pass standard specifications, inspection work content and requirements, and control of non-conforming products. Metal forming performance test: stamping forming performance test, metal upsetting test, metal pipe process performance test, steel hardenability test, welding performance test, chemical composition test, macro/microstructure test and fracture analysis and other testing methods. Strictly control the quality and control the quality of product output.

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