JST Special Series of Tubing and Casing

JST special series tubes mainly include anti-corrosion tubing and casing, oilfield seamless steel tube, anti-H2S corrosion tubing and casing, CO2 corrosion resistant tubing and casing, collapse resistant casing, ultra high-strength casing, heavy oil thermal pipe and perforating gun pipe. In order to ensure the quality of those steel tubes, we configure advanced production and testing equipment (including stretching, flattening, flaring, diameter expanding, bending test, impact, hardness testing, mechanical property testing, metallurgical analysis, etc.). Our company also takes complete testing control measures and develops a rigorous management system for this series of steel pipes.

• JST major products carry out the second party supervision, third-party supervision and third-party inspection. Currently there are more than 10 companies in long-term resident supervision. Almost all key steel pipes are in third-party or second party supervision.
• We make use of advanced ERP information management system. From batch feeding to finished marine seamless steel tubes, we strictly implement tracking management to ensure product traceability.
• We manufacture non API series steel pipes in strict accordance with quality plans. There are different quality plans for new products development, mass production of products, major products and all of the second or third-party supervised products. We also hold preparation meetings before production and issue the quality plans to the relevant quality executive departments. The executive departments should produce and inspect steel tubes in strict accordance with quality plans to ensure product quality.

• Anti-H2S Corrosion Tubing and Casing
• This anti-corrosion tubing and casing can be used in corrosion environments with H2S. This steel tube has large drawing intensity, and uniform corrosion resistance, endurance and uniform hardness.
• CO2 Corrosion Resistant Tubing and Casing
• This type of oilfield seamless steel tube is applicable in corrosion environments with CO2. It owns features of good corrosion performance, pure steel and uniform hardness.
• Collapse Resistant Casing
• This steel tube is widely used for deep or ultra deep wells and oil and gas wells that need isolate halite layer, soft mud layer and other complex stratums. With H2S corrosion resistance, the mechanical property, impact, hardness and performance of this steel pipe fully meet the requirements of users' technical conditions.
• High Strength, Ultra High-Strength Casing Series
• This kind of steel tube has high strength, super toughness, good wear resistance and corrosion resistance, and strong anti-collapse, anti-dislocation deformation, anti-perforation deformation abilities. The steel pipe is extensively used as oil casing in deep and ultra deep wells.
• Heavy Oil Thermal Pipe
• This kind of oilfield seamless steel tube is with high yield strength, tensile strength, resistance to plastic deformation and other performance. It is applicable for well conditions with the operating temperature of 350℃ (It is suitable for long-term continuous using oil in thermal-recovery well conditions). This heavy oil thermal steel pipe is applied in high temperature environments in heavy oil thermal recovery wells.
• Perforating Gun Pipe
• It is utilized for manufacturing the body of perforating gun used in oil and gas wells. This pipe is featured with high control precision and stable performance.

Jiangyin Changjiang Steel Tube Making Factory is a leading manufacturer and supplier of seamless steel tubes and various special pipes in China. We mainly manufacture structure pipe, fluid pipe, high pressure boiler pipe, API pipe, marine pipe, alloy pipe, tubing, casing, line pipe,anti-corrosion tubing and casing and JST special series tube. Our company sets up a steel tube technology R & D center with advanced pipe testing equipment. Through strict testing process, we are able to produce high quality steel pipes for customers. Our products have been exported to the Middle East, CIS, Southeast Asia, Africa, South America, North America, Europe, Australia and many other countries and regions.

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