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 :Quality identification of spiral steel pipes Update : 2023-09-21 View(s) : 538
1. The trademarks and printing of high-quality spiral steel pipes are relatively standard. 2. The composition of high-quality steel is uniform, the tonnage of the cold shear machine is high, and the end face of the cutting head is smooth and regular. However, due to poor raw materials, the ...
Keywords :Applications of coiled tubing Update : 2023-09-19 View(s) : 432
Coiled tubing initially gained a foothold in the market as a cost-effective wellbore cleanup tool. The economic income from well workover and completion operations accounts for more than 75% of the total income from coiled tubing operations, and the scope of application of coiled tubing in oil a...
Keywords :Analysis of the main reasons causing the quality decline of steel bending pipes Update : 2023-09-15 View(s) : 531
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) : 456
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...