Company News

• 2024-08-26

  Schedule 40 pipe meaning

  "What does Sch40 mean?" is a common industrial question, especially in the field of steel pipe and pipeline engineering. Sch40, also known as "Schedule 40", is a method of expressing wall thickness in the pipe specification system. This standardized symbol is extremely important in the engineering design, manufacturing and installation process. This article will take a deep look at the definition, meaning and specific performance of Sch40 in different applications.

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• 2024-08-23

  Carbon Steel Casing Pipe

  Carbon steel casing pipe is a key component used in oil wells. Its main function is to establish a pressure-resistant and sealed channel from the oil and gas reservoir to the ground. It is not only used to protect the drill string and oil pipe in the oil well, but also to prevent the well wall from collapsing and ensure the smooth progress of the drilling process. In the oil and gas extraction industry, carbon steel casing pipe, together with oil pipe and drill pipe, is collectively referred to as oil country tubular goods, abbreviated as OCTG (Oil Country Tubular Goods). These pipes are widely used in oil and gas extraction due to their high strength, pressure resistance and corrosion resistance.

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• 2024-08-23

  Seamless steel pipe pickling and passivation process

  In the production process of seamless steel pipe, pickling and passivation process is one of the key links. It can not only improve the surface quality of steel pipe, but also enhance the corrosion resistance of steel pipe and extend its service life. As an important material in industrial production, precision seamless steel pipe is widely used in petroleum, chemical, boiler, power station, machinery and other industries due to its high precision, high strength and good corrosion resistance. In these fields, the surface quality of seamless steel pipe directly affects its subsequent service life and performance. Therefore, it is particularly important to pickle and passivate the surface of steel pipe during the production process.

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• 2024-08-22

  How to prevent corrosion of drill pipe?

  In the process of oil exploration and exploitation, drill pipe, as a key tool, bears the heavy responsibility of connecting drill collars, transmitting drilling fluid and driving drill bits. However, due to the long-term harsh working environment of drill pipe, it is easy to be corroded by various corrosive media, which shortens its service life and increases maintenance costs. In order to effectively deal with this problem, this article will discuss in detail the anti-corrosion measures and maintenance strategies of drill pipe, in order to extend the service life of drill pipe and improve its work efficiency.

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• 2024-08-22

  Heavy Weight Drill Pipe (HWDP)

  Drill pipe in drilling engineering is a vital tool, which bears the heavy responsibility of transmitting torque and conveying drilling fluid. In modern drilling operations, the design and manufacturing process of drill pipe has been continuously optimized to ensure that it can cope with different geological environments and complex drilling requirements. Among them, heavy weight drill pipe (HWDP) as a special type of drill pipe is particularly important in the underground performance. This article will introduce the structure, function, manufacturing process and application of HWDP in drilling engineering in detail.

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• 2024-08-21

  Black Steel Pipe VS Carbon Steel Pipe

  The carbon content in steel determines its properties. Steel is considered carbon steel when no minimum content of chromium, cobalt, niobium, molybdenum, nickel, titanium, tungsten, vanadium or zirconium or any other element added to obtain the desired alloying effect is specified or required; when the minimum copper specified does not exceed {{0}}.4%; or when the maximum content of any of the following elements does not exceed the percentage noted: manganese 1.65%, silicon 0.6%, copper 0.6%. Most of the steel produced worldwide is carbon steel.

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• 2024-08-21

  What is Black Carbon Steel pipe ?

  Black carbon steel, often referred to as black steel pipe or black iron pipe, is a type of steel characterized by its unique appearance, achieved through a blackening process, and its wide range of applications. This type of steel is distinguished by its dark, matte surface, making it a crucial material in construction, industrial, energy, and other sectors. Black carbon steel is not only visually distinct but also stands out in various applications due to its physical properties and practical value.

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• 2024-08-20

  Well Pipe Casing In Oil Extraction

  Well pipe casing plays a critical role in the drilling and production processes of oil and gas wells. It not only ensures the stability of the wellbore but also provides essential support for various operations within the well. As drilling depths increase and geological conditions become more complex, the application of well pipe casing has become more widespread and diversified. This article will delve into the application, classification, material properties, and grade selection of well pipe casing in the oil industry.

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• 2024-08-20

  API 5L ERW Steel Pipe

  API 5L steel pipe is a carbon steel pipe that meets the specifications of the American Petroleum Institute. This steel pipe is produced in both welded and seamless forms. API 5L ERW steel pipe is an electric resistance welded pipe produced in accordance with the API 5L execution marking standard.

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• 2024-08-19

  Eddy Current Testing of Seamless Steel Pipes

  Non-destructive testing (NDT) for steel pipes involves inspecting the internal or external defects of the pipes without causing any damage to them. This technology has been widely adopted by major steel pipe manufacturers in recent years. The primary NDT methods used in seamless steel pipe production include ultrasonic testing, magnetic testing, eddy current testing, and penetrant testing. Each of these methods has specific applications and limitations depending on the pipe’s material and the nature of the potential defects.

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• 2024-08-19

  What is carbon steel pipe used for?

  Carbon steel pipes are made of steel ingots or solid round steel through perforation into rough tubes, and then hot rolled, cold rolled or cold drawn. Carbon steel pipes play an important role in the steel pipe industry. Carbon steel pipe materials are common materials in engineering construction. According to different needs and engineering environments, carbon steel pipes can be made of a variety of different materials. The materials of steel pipes mainly include the following: ordinary carbon steel, low alloy steel, high alloy steel, stainless steel, etc. The main implementation standards include Chinese national standards, American standards, Japanese standards, etc. Among them, the national standards include the standards of the Ministry of Chemical Industry, Sinopec pipe fittings standards, and power pipe fittings standards. Carbon steel pipes are a durable material made of carbon steel (a steel alloy composed of iron and carbon). Due to its high strength and strong pressure resistance, carbon steel pipes are used in various heavy industries such as infrastructure, ships, distillers and fertilizer equipment. Let's take a look at the uses of carbon steel pipes.

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• 2024-08-16

  Stainless steel flange standard types and classifications

  Stainless steel flanges, as a disc-shaped part, are widely used in pipeline engineering, mainly for pipeline connection. It is usually used in pairs and installed with matching flanges on valves or equipment. In low-pressure pipelines, threaded stainless steel flanges can be used, while welded flanges should be selected in situations where the pressure is more than 4 kg. A sealing gasket is usually added between the two flanges and fastened with bolts. Depending on the pressure level, the thickness of the stainless steel flange and the required bolt specifications will also vary. Due to the wide range and complexity of application scenarios, there are many types of stainless steel flanges. Users need to make reasonable judgments based on the material, size, standard and specific use of the flange when choosing. So, what are the standards and types of stainless steel flanges?

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