The welding process has been applied to 200 MW, 300MW boiler manufacturing practice, and achieved satisfactory results, and obtain greater economic benefits. Pipe is a hollow section, no seams around the long bar of steel. Steel hollow section Shanghai t91 alloy tube, widely used as pipeline fluids, such as transportation of oil, gas, gas, water and some solid materials, pipes and so on. Compared to other steel and solid steel bar, the same torsional strength in bending, lighter, is an economic cross-section steel imports t91 alloy tube, widely used in the manufacture of structural parts and mechanical parts, such as drill pipe, automotive shafts, bicycle frames and construction using steel scaffolding. The ring with a steel pipe manufacturing parts, can improve material utilization t91 alloy tube manufacturers, simplifying the manufacturing process, saving materials and processing time, such as bearing rings, jack sets, has been widely used to manufacture steel. Steel or a variety of conventional weapons indispensable material, barrel, barrel, etc. to make steel. Steel shapes in different cross-sectional area can be divided into tube and shaped tubes. Because in the perimeter of equal conditions t91, the largest area of ??a circle with a circular tube can carry more fluid. In addition, the circular cross section to withstand internal or external radial pressure, the force is uniform, so the vast majority of pipe is pipe. Alloy pipe weight formula: [(OD - Wall Thickness) * thickness] * 0.02466 = kg / m (weight per meter) The company specializes in Baosteel, Tianjin, Chengdu, Steel, Steel, and other well-known manufacturers quality seamless and other metal materials. Made of 10 #, 20 #, 45 # 16Mn, 27SiMn, 12CrMoV, together with the original or a copy of the material. Perform standard: GB3087-99 high pressure boiler tubes, GB5310-95 high-pressure pipe, fertilizer dedicated pipe GB6479-86, GB8162-99, GB8163-99. t91 alloy tube | Xinyang t91 | Katherine source of steel provided by source Pipe Co., Ltd. Liaocheng trillion. Liaocheng Katherine source Pipe Co., Ltd. (www.lczygg.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Katherine source of innovative ideas will lead pipe and you work into the brilliant, for a better future!