Jiangyin City Changjiang Steel Pipe Co., Ltd., by taking Changqiang, the producer of iron, steel and tube as the raw material supplier, based on various seamless steel tubes fabricated by manufacturers like Jiangyin Seamless Steel Tube Factory, Metal Tube Making Factory, Changgang Pipe Making Co., Ltd., and Jiangyin Changjiang Special Oil Pipe Manufacturing Co., Ltd., has established long-term and close business relationships with domestic large-scale steelmakers and petrochemical enterprises, such as Chengdu Iron & Steel Co., Ltd, Tianjin Iron & Steel Co., Ltd., Baotou Iron & Steel Group Co., Ltd, SINOPEC, CNPC, and CNOOC. The business scope ranges from the sales of seamless steel tube produced by the company to the dealership of domestic and imported products.We keep an annual stock of more than 80,000 metric tons pipes, more than 5000 sizes range Ф6-824*1-75mm, including petroleum drill pipe, oil pipe, casing, oil high pressure boiler tube, petroleum cracking pipe, tube, fertilizer tube, Marine low medium voltage boiler tube, fluid pipe, line pipe and tube structure and alloy steel tube which is imported from Germany, Spain, Italy, and Japan. We take the pride as the frontrunner in the sales field of steel tube in China with the honor of entering the Top 500 in thetertiary industry for three consecutive years. In the year of 2014, the overall sales volume has reached 800,000 tons with the sales income hitting 4.6 billion Yuan. 

Jiangsu Changqiang Steel Co., Ltd. situated at the Jiangyin-Jingjiang industrial park, possesses 4 deep-water wharfs with berths for ships under 50,000-tonnage, 10 inner harbors with kiloton berths and a chain of production line, from the raw material factory, the sintering plant, the iron works, the steel mill, the rolling mill as well as a power plant of oxygen generators and utilities. The yearly yield of cast iron reaches up to 1.3 million tons, steel 1.5 million tons, and round billet 0.8 million tons. 

Jiangyin Seamless Steel Tube Factory specializes in the production of various cold-drawing and hot-rolling seamless steel tubes of 8-159mm in outside diameter and 1-20mm in thickness. And the varieties include: Low/medium pressure boiler pipe, high pressure boiler pipe, alloy pipe, marine pipe, hollow sucker rod, oil cracking tube, tubing, American standard tube, European standard tube, etc. It has an annual production capacity of more than 200,000 tons. JST brand is famous in many countries and has registered in Singapore, UAE and USA.
Certified by seven classification societies, i.e. CCS (China), LR (UK), DNV (Norway), ABS (U.S.A), BV (France), NK (Japan), and GL (Germany) 
Certified by API (the American Petroleum Institute)

SGS,EU PED and CPD Certification

Jiangyin Metal Tube Making Factory: A large-scale pipe company newly founded by Changjiang Steel pipe Co., Ltd. in 2007. With domestically advanced Φ273 type new high precision tube rolling unit, the annual production of Jiangyin Metal Tube Making Factory climbs up to 0.3 million tons of 114-340mm in outside diameter large caliber hot-rolling seamless steel tubes. Main products include tubing, casing, line pipe, high pressure boiler pipe, hydraulic prop tube, marine tube, etc. 

Jiangyin Changgang Pipe Making Co., Ltd., a joint venture enterprise with an annual output capacity of 20,000 tons, specializes in producing oil drill pipe of wide range from Grade E75, X95, G105 , S135 which are in compliance with API 5D standard. 

Jiangyin Changjiang Special Oil Pipe Manufacturing Co., Ltd., a new modern enterprise, has an annual deep processing capacity of 20,000 tons, and the products mainly include tubing, casing, all products covered by API 5CT, API 5L standards, and other products out of API standard.

Certified by GOST(Russia)

Certified by CNAS