En ASTM API S355 A53b A106 Gr. B A336 Carbon Structure Seamless Steel Pipe Large Diameter Thick Wall Sch20 Alloy Seamless Fluid Pressure Boiler Tube API Pipe

.Zhengde API pipeline steel pipe is a pipeline pipe belonging to the American Petroleum Standard. The pipeline pipe is used to transport the oil, steam, and water pumped out of the ground to the oil and gas industry enterprises through the pipeline pipe. Line pipes include seamless pipes and welded steel pipes, and the pipe ends have flat ends, threaded ends and socket ends; the connection methods are end welding, collar connection, socket connection, etc.
The production of high-grade line pipes adopts micro-alloying heat treatment process. The production cost of stainless steel seamless pipes is obviously higher than that of welded pipes, and with the improvement of steel grades, such as X80 and above steel grade line pipes, there is no carbon equivalent limit. The conventional process of seam steel pipe is difficult to meet the requirements of users; all 12Cr1moV alloy pipe manufacturers are carrying out scientific research work to improve the corrosion resistance of their line pipes and stabilize the performance in low temperature and high temperature environments.

Shandong Zhengde Metal Manufacturing Co., Ltd. is a production and sales company integrating hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, steel wires, metal mesh, stainless steel, aluminum, copper and other metal products integrated large enterprises. Five production and sales bases have been formed in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan and Tai'an, with more than 100 production lines, 4 nationally recognized laboratories, 2 technical engineering centers, and 5 enterprise technology centers. Products are exported to more than 50 countries and regions such as North America, South America, Europe, Africa, Oceania, Middle East, and Southeast Asia.