Jiangyin Southern Stainless Steel Tube Co., Ltd. is located in Jiangyin City, Jiangsu Province. The company backs onto the golden waterway of the Yangtze River and is close to the Shanghai-Nanjing Railway, Xinchang Railway, Shanghai-Nanjing Expressway, and Yanjiang Expressway, offering convenient land and water transportation.
Established in 1984, the company has fixed assets of RMB 300 million and covers an area of 52,000 square meters. The construction of its third plant, covering 30,000 square meters, has recently been completed, representing an investment of RMB 80 million in a stainless steel welded pipe project.
The company has been certified by the China Classification Society (CCS) Quality Certification Company for ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System. It has also obtained factory certification from multiple international classification societies, including DNV (Norway), ABS (USA), GL (Germany), LR (UK), BV (France), CCS (China), and NK (Japan), as well as the EU TUV-PED certificate.
The company has established long-term supply partnerships with Sinopec, CNPC, CNOOC, and China National Chemical Corporation. It holds a Special Equipment Manufacturing License (Pressure Pipe Components) with certificate No.: TS2710P02, covering Grades A1, A2 (1), and B (1) (2), with the maximum production size certified up to 711mm. The license includes permits for manufacturing GB13296 stainless steel tubes for boilers and heat exchangers, GB/T14976 stainless steel tubes for fluid transportation, GB9948 seamless steel tubes for petroleum cracking, GB5310 seamless steel tubes for high-pressure boilers, and GB/T12833 austenitic-ferritic duplex stainless steel seamless tubes. The company also produces stainless steel tube products in accordance with ASME SA213/A312/A269/A789/A790 standards.
In the field of processing and forming new stainless steel materials, the company has been granted 3 authorized invention patents, 18 authorized utility model patents, and 2 invention patents. It is actively engaged in the R&D of various special stainless steel tubes. The company has been recognized as a Jiangsu Provincial Science & Technology SME, Jiangsu Provincial Private Science & Technology Enterprise, Jiangsu High-tech Enterprise, Wuxi Engineering R&D Center for Special Stainless Steel Tubes, Jiangyin R&D Center for Special Steel Tubes, and Wuxi Engineering Technology Research Center for Special Stainless Steel Tubes.
The company currently employs 205 staff members, including 30 engineers and technical personnel and 35 full-time quality inspectors. It has an annual production capacity of 100,000 tons of cold-drawn and cold-rolled seamless stainless steel tubes. Its products are used in aerospace, aviation, marine, petroleum, chemical, instrumentation, and machinery industries. The company's main products include austenitic stainless steel tubes, duplex stainless steel tubes, and nickel-based alloy special steel products.
The company's main production equipment includes 12 cold-drawing production lines with capacities of 5T, 10T, 20T, 40T, 60T, 150T, 300T, 600T, and 800T. The cold-drawn products range from φ6–914mm in outer diameter with wall thicknesses of 0.5–80mm. For cold rolling, the company operates 13 high-precision cold-rolling production lines, including 8 LG30 cold-rolling mills, 3 LG60 mills, 2 LG120 mills, 1 LG325 mill, and 1 LG630 mill (with an investment exceeding RMB 100 million for this single unit). The cold-rolled high-precision stainless steel tubes range from φ14–630mm in outer diameter with wall thicknesses of 0.5–80mm.
The company's primary testing equipment includes 3 large- and small-diameter ultrasonic eddy-current combined flaw detectors, 3 automatic hydrostatic testers, 2 imported direct-reading spectrometers, and 3 sets of high-temperature and room-temperature mechanical property testing equipment, among other specialized instruments, fully meeting the verification requirements for stainless steel tube inspection capabilities.
