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 :Distinguishing method of welded steel pipe and seamless steel pipe Update : 2023-05-05 View(s) : 358
1. Metallographic method: Metallographic method is the main method to distinguish welded steel pipes and seamless steel pipes . There is no welding material added to the high-frequency resistance welded steel pipe, so the weld seam in the welded steel pipe is very narrow, and the weld seam cannot...
Keywords :Surface treatment and processing methods of thick-walled steel pipes Update : 2023-05-04 View(s) : 371
To improve the service life of oil and gas pipelines, surface treatment is usually carried out to facilitate the firm combination of thick-walled steel pipes and anti-corrosion layers. Common treatment methods are: cleaning, tool de-rusting, pickling, spray shot blasting, and de-rusting. 1. Pic...
Keywords :Four measurement methods for the length of spiral steel pipe Update : 2023-04-28 View(s) : 306
How to accurately measure the length of spiral steel pipe is very important for spiral steel pipe manufacturers. After years of production experience, four methods of testing length have been summed up: 1. Improved encoder length measurement: This method is an indirect measurement method, w...
Keywords :Process characteristics of spiral steel pipe Update : 2023-04-27 View(s) : 288
Spiral steel pipes are mainly used in water supply engineering, the petrochemical industry, the chemical industry, the electric power industry, agricultural irrigation, and urban construction. They are 20 key products developed. Used for liquid transportation: water supply and drainage. For gas ...
Keywords :The role of Chromium and Nickel elements in stainless steel pipes Update : 2023-04-26 View(s) : 320
Stainless steel pipe is a general term for iron-based alloy steel with anti-corrosion and anti-oxidation properties through the passivation of chromium with a chromium content of more than 13%. The main component of stainless steel pipe is iron. There is only one element that determines the prop...