Changzhou Tongxing Steel Tube Co., Ltd. was founded on Dec. 29, 2000, and it is located in Changzhou City, Jiangsu province. We are specialized in manufacturing seamless steel tubes. Our main products are HIGH PRESSURE BOILER PIPE, CARBON STEEL PIPE, ALLOY STEEL PIPE, PETROLEUM CRACKING SEAMLESS STEEL PIPES, STRUCTURAL SEAMLESS CARBON, PRECISION SEAMLESS STEEL TUBES, SEAMLESS STEEL PIPE FOR LINE PIPE, CASING AND TUBING and so on. Our products are widely used in petrochemical, machinery, shipyard, power station, boiler, and heat exchanger. The diameter ranges from Φ8mm to Φ121mm and the wall thickness is from 1mm to 10mm. The length can meet to 14 meters!Our factory covers 70,000 square meters with the permanent assets of USD5, 000,000. Employing more than 300 workers, 5 engineers, and 21 technicians, we have 5 sets machines of Φ60 - Φ90 for punching holes, 13 sets of cold drawn machines, and 7 sets of straightening machines. We can do the mechanical properties testing, chemical composition analysis, hydrostatical testing, metallurgical analysis, ECT and UT testing so as to assure the quality achieving the international leading level.Insisting on introducing top grade equipment and gather excellent experts, we can manufacture first rank products. Our company has the ISO9001 authentication certificate of quality management system, the seamless boiler steel pipe production license, API 5CT and API 5L certificate.We produce the pipes according to ASTM A179, A192, A213, A106, A53, A209, A210 ; T5, T9, T11; API 5LGr.B, x42, K55,J55, N80; DIN 1629, DIN 2448, DIN 2391, DIN 17175; and so on. We Provide "Quality Products, Excellent Service, and Competitive Prices” and we hope to build long time business relationship with you.
