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 :Introduction of the production process of spiral steel pipe and its classification standard Update : 2022-05-05 View(s) : 994
Spiral steel pipe production process: It is a spiral seam steel pipe made of strip steel coil as raw material, often warmly extruded, and welded by the automatic double-wire double-sided submerged arc welding process. (1) The raw materials are strip coil, welding wire, and flux. They must...
Keywords :316 Capillary Stainless Steel Performance Update : 2022-04-29 View(s) : 788
Capillary stainless steel generally refers to a thin tube with an inner diameter of less than or equal to 1mm. Because such a tube diameter is as thin as a hair, it is called a capillary. Its use occasions include medicine, building materials, automatic instrument signal tubes, instrument wire prote...
Keywords :Three large diameter spiral steel pipe connection methods Update : 2022-04-27 View(s) : 880
The most common connection method for large-diameter spiral steel pipes is welding, but in some projects, threaded connections, flange connections, socket connections, and groove connections are often used. Welding, flange connection Welding and flange connection is traditional spiral st...
Keywords :How to deal with the natural gas pipeline-interface Update : 2022-04-25 View(s) : 972
(1) Gas pipeline preparation before construction ①Although the melting point of molten lead refined lead is 327℃, due to the operation in the open air, there is a certain distance between the molten lead and the pouring interface. Considering the temperature drop of molten lead during transpor...
Keywords :The difference between high frequency welded steel pipe and straight-seam welded steel pipe Update : 2022-04-22 View(s) : 1081
1. Different nature A. High-frequency welded steel pipe : After the hot-rolled coil is formed by the forming machine, the skin effect and proximity effect of high-frequency current are used to heat and melt the edge of the tube blank, and pressure welding is performed under the action of the ex...