Features of seamless carbon steel three links

- Mar 07, 2019-

        Carbon steel Three-wire is generally used for the installation of regulating valves, the use of clean. The concentric diameter tube is beneficial to the fluid flow, the interference to the fluid flow state is smaller when the diameter is changed, and the seamless three links therefore uses the concentric diameter tube to change the diameter of the gas and the vertical flow liquid pipe. Eccentric diameter tube because the side is flat, conducive to exhaust or drainage, easy to drive and repair, so the horizontal installation of liquid pipes are generally used eccentric diameter tube.

        The diameter tube is also called the large and small head, the two ends of the pipe mouth diameter is different, used to connect different diameters of the pipe or flange for variable diameter. Concentric diameter tube of the two ends of the pipe mouth, the center of the circle on the same axis, when the diameter, the axis of the calculation of the position of the pipe, the position of the pipe unchanged, generally used for gas or vertical liquid pipe variable diameter. The tube mouth of the two ends of the eccentric diameter tube is cut in circumference and is generally used for horizontal liquid piping.

         Welding three-way is a steel hot pressing molding or forging molding elbow, its connection form is directly to the three-way and steel pipe welding, the main manufacturing standards for welding three links are generally gb/t12459, GB/T13401, ASME B16.9, SH3408, SH3409, HG/T21635, HG /T21631, SY/T0510.

         The welding three links generally have equal diameter three links, different diameter three links, etc., the material has carbon steel, alloy steel and stainless steel.

        Carbon steel Three-wire when the amount of chromium in steel reached about 1.2%, chromium and corrosive medium oxygen action, on the steel surface to form a very thin oxide film (self-passivation film), seamless three-wire can prevent further corrosion of the steel substrate. In addition to chromium, commonly used alloy elements are nickel, molybdenum, titanium, niobium, copper, nitrogen, etc. To meet the requirements for the organization and performance of concentric diameter tubes for a variety of applications. Direct seal three-path concentric diameter tube production using a certain production and processing technology, to ensure that in the production and processing can show good role and performance.

         Concentric diameter tube resistance to air, steam, water and other weak corrosive media and acid, alkali, salt and other chemical etching medium corrosion of steel. In practical applications, the corrosion resistance of weak corrosive media is often corroded.

Carbon steel three links


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