Threeway Steel Co., Ltd
E-mail: sales@srtsteelpipe.com
Address: 22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC: 410116Phone:0086-731-8873-9521
Keywords :Analysis of the main reasons causing the quality decline of steel bending pipes Update : 2023-09-15 View(s) : 591
Analysis of the main causes of the quality decline of steel bending pipe and methods of attention. When the pipe is purely bent, under the action of the external force distance M, the outer arm wall of the neutral layer of the pipe is thinned by the tensile stress &1, and the inner side is s...
Keywords :The importance of adding anti-corrosion coating to plastic-coated steel pipes Update : 2023-09-13 View(s) : 516
China's steel-plastic composite steel pipes have not been developed for a long time, and there is still a large gap compared with foreign countries in terms of raw materials, technology, manufacturing equipment, etc. For example, coating on the outer wall of the pipeline can increase the loop resist...
Keywords :What are the factors that cause horizontal stripes in spiral seam submerged arc welded steel pipes Update : 2023-09-11 View(s) : 1
First of all, it may be due to the stress of spiral submerged arc welded steel pipes . That is, the residual stress and welding stress after the steel pipe is formed. Secondly due to the presence of hydrogen. For example, the flux is not dried enough, the preheating temperature is insufficie...
Keywords :Large diameter thick wall seamless steel pipe details Update : 2023-09-07 View(s) : 674
Large-diameter thick-walled seamless steel pipes are made from steel ingots or solid tube blanks that are perforated into capillary tubes, and then hot-rolled, cold-rolled, or cold-drawn. Large-diameter thick-walled seamless steel pipes play an important role in my country's steel pipe industry....
Keywords :Physical and chemical properties and appearance testing of high-frequency welded pipes Update : 2023-09-05 View(s) : 515
High-frequency welding management properties: normal temperature mechanical properties, high-temperature mechanical properties, low-temperature properties, and corrosion resistance. The physical and chemical properties of high-frequency welded pipe mainly depend on the chemical composition of st...