Shengshida Yongzhou spiral pipe manufacturer, Yongzhou spiral pipe price

规格：

219*6

规格：

219*7

规格：

219*9

& c, the commonly used standards for spiral pipes are generally divided into: / (Ministry standard, also called spiral seam submerged arc welded steel pipe for ordinary fluid transportation pipelines), B/. (National standard, also called Oil and Gas Industry Transportation Steel Pipe Delivery Technical Conditions No. Part: grade steel pipes (those with strict requirements include grade B/B steel pipes)), (American Petroleum Institute, also called pipeline steel pipes, which are divided into two grades: and), / (spiral seam submerged arc welded steel pipes for piles).
c. Features of spiral pipes: The production process of straight seam welded pipes is simple, with high production efficiency, low cost and rapid development. The strength of spiral welded pipes is generally higher than that of straight seam welded pipes. Welded pipes with larger diameters can be produced from narrower billets, and welded pipes with different diameters can also be produced from billets of the same width. However, compared with straight seam pipes of the same length, the weld length is increased by ~%, and the production speed is lower. Therefore, smaller diameter welded pipes mostly use straight seam welding, while large diameter welded pipes mostly use spiral welding.
c. Spiral pipes are mainly used in water supply projects, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction. They are one of the twenty key products developed in our country. For liquid transportation: water supply, drainage, sewage treatment projects, mud transportation, ocean water transportation. For gas transportation: coal gas, steam, liquefied petroleum gas. For structural purposes: piling pipes, pipes for bridges, docks, roads, building structures, marine piling pipes, etc.
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