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    1. Casing PipeDuring oil extraction, different types of well casings are used. The purpose of surface casing, for example, is to protect fresh water zone and shallow gas zone from oil or gas contamination. Another noteworthy device is the casing hanger, which is installed in the well head and hangs the casing.
    1. Oil Pipe/TubingIt provides the passage through which the oil flows out of the underground formations and up to the well surface. Threads are cut onto both ends of the pipe, allowing for easier connection to the pipe joint. Thread precision has strict standards to meet so as to ensure a tight seal at the joint.
    1. OCTG Pup JointAccording to the way the joint is connected to the casing string. The threaded version is further classified into two types. One comes with male threads at both ends, and the other type comes with male and female threads at each end, respectively. According to the usage, the joint also can be divided into two categories, production tubing joint and pipe casing joint.
    1. OCTG Couplings for Casing & TubingThe OCTG coupling is a short length of pipe used to connect two joints of casings or production tubings. Unlike ordinary couplings, it effectively solves the problem of fatigue fracture that is easily caused by the stress concentration. The coupling is normally made of the same grade of steel as the casing or tubing.
    1. API Thread ProtectorsAs an indispensable item generally used in combination with other oil country tubular products, the thread protector serves to ward off the impact during pipe loading and unloading as well as any potential damage during pipe transportation. The polyethylene used for protector-making serves as the aggregate, which combines with the steel matrix ...
    1. Hot-rolled Seamless PipeDuring the manufacturing process, the undesired microstructure of the ingot can be broken down and the grains in that structure can be re-arranged and refined to eliminate any structural defects. The result is that our steel product has enhanced mechanical properties and granularity.
    1. Cold Drawn Seamless PipeSteel tubes often need to be drawn several times in order to produce the required shape and tolerance. Between each drawing pass, the material should be annealed to restore some ductility and prepare it for further processing. From the outside, you can see that the cold-drawn seamless pipe ...
    1. API Seamless Line PipeAPI linepipe-making process is similar to that of the ordinary seamless steel pipe, but the former has more stringent precision and tolerance band requirements to meet. In order for a better understanding of our API 5L linepipe, we give the following detailed specification and order information for reference.
    1. ASTM Seamless PipesUtilizing seamless pipes to make circular parts minimizes the use of raw material, simplifies the manufacturing process and saves manufacturing time. Typical examples of circular parts are the outer and inner rings of rolling bearing as well as the jack bushing. In addition, the pipe is an indispensable item in making conventional weapons including guns and artilleries.
    1. Seamless Alloy-Steel PipesOne of the most pleasing features of our alloy-steel tubular product is that it can be totally reclaimed in good condition. The recycling action is in line with the national strategy on energy efficiency and environmental protection. Hence, the country is gearing another boost in the alloy-steel pipe applications in new fields ...
  • Square Hollow SectionsSometimes also referred to as box section, our square hollow section exhibits the same flexural strength and tensile strength as the solid round tube while having lighter weight than the latter. Durable and dependable, the box section does have a temptation, due also to the cheap price. Plenty of applications exist for the box section.

At Borun Petroleum Pipe Manufacturing Company, a wide range of pipe products is available, including but not limited to, borehole casing, production tubing, casing coupling, pup joint, thread protector, seamless steel tube or pipe, oil line pipe, galvanized pipe, and square hollow section.

Common uses of our products are in the construction of oil pipeline, structural steel members, and mechanical equipment. Other application areas include the chemical, automobile manufacturing, and shipbuilding industries.