Company News

2024-10-31

Seamless Pipe HS code

Over the years, the variety of goods has become increasingly diverse, resulting in the need to classify them in a unified and standard way that is generally recognized by global management agencies and companies. The goal of the Harmonized System code is to clearly label all these goods so that various products can be more easily identified internationally.

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2024-10-30

How to calculate the weight of a drill collar?

During the oil extraction process, line pipe is not the only tool needed for successful drilling. Among the materials used with line pipe are drill collars. Drill collars are used to provide weight to the drill bit. They are the tubular section of the drill string, with thick walls, made of steel or special alloys. Another major function of the drill collar is to provide a path for the drilling fluid that is pumped in. The drill collar provides drilling weight to the drill bit and prevents the drill string from bending. In addition, the drill pipe should not be run in a compressed state, otherwise it will be seriously damaged, so we need to know the weight of the drill collar that is enough to provide weight to the drill bit.

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2024-10-30

Spiral Drill Collars Size and Application

The spiral drill collar is an important component of the bottom of the drill string and the core component of the lower drilling assembly (BHA), usually located above the drill bit. As a thick-walled pipe, the wall thickness of the drill collar is about 38 to 53 mm, which is 4 to 6 times the wall thickness of the conventional drill pipe, so it has considerable weight and rigidity. Its main functions include applying drilling pressure, reducing drill bit vibration, and controlling well inclination. In the design of the drill collar, the hanging card groove and the slip groove are usually processed on the outer surface of the internal thread to facilitate the connection and disassembly operation when drilling or pulling out of the hole.

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2024-10-29

How are steel pipe piles repaired and maintained?

Like piling pipe, steel pipe piles are the unsung heroes of the construction industry, providing critical support for numerous structures such as bridges, high-rise buildings, offshore oil platforms and retaining walls of all sizes. However, despite their strong resilience, these critical structural elements are subject to environmental stress and erosion over time, requiring effective repair and maintenance.

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2024-10-29

What is a concrete-filled steel pipe pile?

Steel pipe piles are made of welded steel pipes, spiral welded . They are used for deep foundations and for transferring the load of buildings and other structures to deep underground soil layers. They help resist load pressure by allowing point bearing and surface friction. Steel pipe piles are driven into place with plates or points and can be closed-end or open-end. Some steel pipe piles are filled with concrete to maximize strength and bearing capacity. Sometimes, larger and thicker pipe piles are more cost-effective than filling smaller and thinner piles with concrete. Steel pipe concrete piles are a composite pile with unique advantages and are an alternative to traditional piles.

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2024-10-28

What is Sour Service Steel Pipe?

Sour service steel pipes are suitable for pipelines in corrosive environments. In practical applications, sour service pipes are mainly used in H2S-containing environments in the oil and gas industry. Usually, these pipes need to meet standards such as API Spec 5L and comply with specifications such as NACE MR0175/ISO 15156 to ensure their safety performance in sour environments. According to international regulations, when the partial pressure of H2S in the pipeline reaches 300 Pa (Pa), the bridge used must have the ability to resist acid corrosion. These sour service pipes often use treated specific low-alloy steel or stainless steel, which can effectively inhibit acid corrosion phenomena such as activated corrosion cracking (SCC). As we all know, the corrosion of pipelines is an important factor affecting their safe use and service life. Severe corrosion will cause leakage of oil and gas pipelines, and even cause explosions in severe cases. Pipeline corrosion poses a huge threat to personal safety and environmental pollution, so the production of sour pipelines is of great significance. At present, the manufacturing inspection standards for sour pipelines are mainly based on API Spec 5L.

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2024-10-28

ERW Structural Pipe Piling Pipe

Steel pipe piles are a type of building material made of steel pipes, mortises and tenons, and are usually designed for use in structures such as offshore docks to support and stabilize foundations. Steel pipe pile products are widely used, especially in areas above water or with low soil bearing capacity. According to different needs, steel pipe piles can be manufactured using processes such as electric resistance welding (ERW), fusion welding and flash welding. Common types include longitudinal and spiral steel pipe piles. The ERW (electric resistance welding) structural pipe piling pipe has become the first choice for many engineering projects due to its stability and high cost performance.

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2024-10-25

How to Know Whether the Seamless Tube Meets the Standard?

Seamless steel pipes are widely used in many fields such as petroleum, chemical industry, electric power, machinery, etc. due to their high pressure resistance, corrosion resistance, and excellent mechanical properties. However, does a seamless steel pipe marked "compliant with the standard" necessarily mean that the quality is qualified? In fact, seamless steel pipes that meet industry standards only meet the standards in basic performance. To ensure their quality and performance in actual applications, other factors need to be paid attention to.

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2024-10-25

API 5CT oil casing pipe hydrostatic test

API 5CT oil casing pipe hydrostatic test is to test the pipe at a specified pressure when the pipe is filled with water to see if there is leakage or rupture in the pipe. It is used to detect the anti-leakage ability of steel pipes under standard test pressure and pressure stabilization time. It is an indispensable part of the steel pipe manufacturing process. The operation includes three steps: pipe flushing, pressure testing, and water control. Today we will introduce the API 5CT oil casing hydrostatic test in detail.

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2024-10-24

Why are the Pipes for Industrial Boilers All Seamless Steel Pipes?

Industrial boiler tubes are mainly seamless steel pipes, because the various performance indicators of seamless steel pipes can fully meet the requirements of boiler applications. Although the cost is high, its safety and reliability are high. Welded steel pipes are generally used as low-pressure fluid delivery pipes within 2Mpa. Industrial boilers and other high-temperature and high-pressure equipment must use seamless steel pipes, and the wall thickness is also thickened accordingly.

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2024-10-24

Heat treatment for API 5CT Casing and Tubing

Heat treatment of API 5CT casing and tubing is a process that improves the physical and mechanical properties of the casing by controlling its temperature and cooling rate to meet the requirements of a specific application. Oil casing and tubing typically undergoes two main types of heat treatments: normalizing and tempering. These heat treatments adjust the hardness, strength, corrosion resistance and toughness of the casing pipe, making it suitable for drilling, producing and transporting oil and gas. The following are the general steps and purposes of heat treatment of oil casing.

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2024-10-23

Seamless Steel Pipe Manufacturers and Suppliers in China

Seamless steel pipes have hollow cross-sections and are widely used as pipelines for conveying fluids, such as pipelines for conveying oil, natural gas, coal gas, water and certain solid materials. Baowi Steel Manufacturing Co.,Ltd is a manufacturer specializing in the production of seamless steel pipes and seamless carbon steel pipes. In addition, we also provide a variety of steel pipe equipment, such as oil casing and tubing, drill pipes, drill collars, slotted casings, and screens.