304 stainless steel tube as a heat-resistant stainless steel is the use of food equipment, general chemical equipment stainless steel pipe fittings, equipment and nuclear power industries. 304 stainless steel rust performance than the 200 series stainless steel stronger. High temperature also better 316l stainless steel pipe, can be high to the 1000-1200 degrees. 304 stainless steel with excellent corrosion resistance and good energy between resistance to intergranular corrosion. 304 equivalent of China's 0Cr19Ni9 (0Cr18Ni9) stainless steel. 304 19% chromium, nickel 9%. 304 is the most widely used stainless steel, heat-resistant steel, practical steel, 304 stainless steel pipe, industry classification, there are many stainless steel tube, the first seamless and straight seam welded steel pipe, followed by basic classification structure 304 stainless steel pipes and industrial fluid transport 304 stainless steel tube. There is a division of the national standard, Japanese standard, American Standard and the like. Steel numbers and representation ① chemical element with the symbol of international and national symbols to represent the chemical composition, using the Arabic alphabet to represent the content: such as: China, Russia 12CrNi3A ② with a fixed number of digits to represent the steel type series or digital; as : The United States, Japan, 300 series, 400 series, 200 series; ③ with the Latin alphabet and numbers sequence composition, saying only that the use of stainless steel pipe fittings _ Shengda Po-commerce (certified) _ stainless steel pipe provided by the Tianjin Shengda Bao Jie Trading Company. Bao Jie Tianjin Shengda Trading Company (www.sdbjsm.com) is Tianjin, hardware leader, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Shengda Po-commerce leader in the staff warmly welcome all inquiries negotiations to create Shengda Po-commerce a better future.