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2024-09-13

Common Pipeline Classifications and Standards

Carbon steel pipes are made of an alloy of iron and carbon. They are widely used in various heavy industries because of their strong, durable and corrosion-resistant properties. Carbon steel pipes can not only withstand high pressures, but also have good oxidation resistance. The following introduces the specifications, manufacturing processes and applications of carbon steel pipes in various types of pipes.

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2024-09-12

What is OCTG ?

OCTG is the abbreviation of Oil Country Tubular Goods, which mainly refers to the pipe products used in oil and gas production (drilling operations). Oil Country Tubular Goods are usually manufactured according to API specifications or related standard specifications. Thick-walled oil country tubular goods manufacturers must not only meet the specifications of each customer, but also meet the requirements of API 5L & 5CT, ISO, EN and other standards. It can also be considered as a general term for drill pipes, steel casings, fittings, joints and accessories used in the onshore and offshore oil and gas industry. These products can be either welded or seamless. In order to control the chemical properties and apply different heat treatments, oil country tubular goods are divided into more than ten grades of different performance materials. OCTG also usually includes a series of accessories (commonly called pipes) and various accessories involved in its manufacturing and processing. These accessories include drill pipes, casings or tubing, thread protectors, insertion guides, buffer rings and pipe plugs.

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2024-09-12

ERW pipe vs Seamless pipe cost

Seamless steel pipes have hollow cross-sections and are widely used as pipelines for conveying fluids, such as oil, natural gas, coal gas, water and some solid materials. Compared with solid steel such as round steel, steel pipes are lighter in weight under the same bending and torsion strength, and are an economical cross-section steel." ERW steel pipe" is electric resistance welded pipe, referred to as ERW, which is used to convey vapor and liquid objects such as oil and natural gas. It can meet various requirements of high and low pressures and currently occupies a pivotal position in the world's transportation pipeline field.

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2024-09-11

Schedule 80 Carbon Steel Pipe

Schedule 80 carbon steel pipe refers to pipes with Schedule 80 characteristics, whose strength and toughness are determined by the composition of carbon steel. Different grades of carbon steel pipe determine its performance in pressure capacity, and Schedule 80 steel pipe represents a certain pressure carrying capacity. In order to standardize the pressure capacity of pipes, a "Schedule Scale" system is used, where the Schedule Scale ranges from 5 to 160. The higher the number, the greater the pressure the pipe can withstand.

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2024-09-11

Schedule 20 vs Schedule 40 steel pipe

In the field of pipeline engineering, there are many types of steel pipes, and different application environments have different requirements for steel pipes. Steel pipes are divided into different grades according to the wall thickness, among which Schedule 20 and Schedule 40 steel pipes are the most common. Both types of steel pipes are widely used in the industrial and commercial fields, especially in the process of conveying liquids and gases. This article will explore the characteristics, application differences and selection considerations of Schedule 20 and Schedule 40 steel pipes in depth to help you make an informed decision in your specific project.

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2024-09-10

ERW Pipe Manufacturing Process

ERW stands for Electric Resistance Welding and is primarily used to describe a specific method in pipe manufacturing. In this process, two unwound coils of steel plates are joined together without welding filler wire or metal. Instead, the steel plates are joined together by passing an electric current and applying a constant force. Unlike other pipe manufacturing methods you may be aware of, ERW pipe manufacturing does not start with a billet and then further refined through a perforator.

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2024-09-10

Black Steel Pipe VS ERW Steel Pipe

The main difference between black steel pipe and ERW steel pipe lies in their manufacturing process and application range. Black steel pipe is produced by forging process, while ERW steel pipe is manufactured by resistance welding process. ERW steel pipe is made of very fine hard steel, while black pipe is usually made of forgeable steel. The application of black steel pipe is mainly concentrated in gas pipelines and hot water circulation systems in houses, while the use of ERW steel pipe is more extensive, covering oil and gas pipelines, structural engineering and industrial applications.

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2024-09-09

Sizes of Carbon Steel ASTM A53 Grade B ERW PIPE

ASTM A53 Grade B is the material under API 5L Gr., the American Standard for Steel Pipe. It is also the American Standard material, A53 Gr. There are 3 forms in the Grade B in the American Society for Testing and Materials standard A53 steel pipe standard: seamless steel pipe, ERW welded pipe, furnace welded pipe.

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2024-09-09

ERW Pipe Meaning

ERW steel pipe, or "Electrical Resistance Welded Pipe", refers to a steel pipe produced by resistance welding technology, with the weld parallel to the pipe body. This type of steel pipe is formed by hot-rolled coils through a forming machine, and the edge of the tube is heated to a molten state by the skin effect and proximity effect of high-frequency current, and then pressure welding is performed under the action of extrusion rollers to form a weld. This weld is formed by melting the steel strip parent material, which ensures the reliability of mechanical strength. Therefore, ERW welded pipes are widely used in various projects, especially in oil and gas transportation, structural engineering and construction industries.

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2024-09-06

Standard length range and chart of seamless steel pipe

The standards for the length range of seamless pipes are divided into international standards and domestic standards. The length range is generally between 3 and 12 meters, but different industries have different requirements for pipe length. Choosing the appropriate seamless pipe length requires considering many factors, including the purpose of the pipe and the required length range, the manufacturer's specifications, prices, etc.

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2024-09-06

What is black steel pipe?

Black steel pipe, as the name implies, is a steel pipe whose surface has not been galvanized. This steel pipe is called black steel pipe because of the dark iron oxide coating that forms naturally on its surface. It is widely used in various fields, especially in environments that require high temperature resistance, high pressure resistance and corrosion resistance. The unique properties of black steel pipe make it an ideal choice for transporting important fluids such as natural gas, water, and oil. This article will explore the properties, manufacturing processes, advantages, application areas, and comparisons with other types of steel pipes.

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2024-09-05

Sch 40 Pipe Dimensions

In the industrial and construction sectors, the specifications and standards of pipes are crucial to ensure their performance and safety. Schedule 40 pipe is a common type of pipe that is used in a wide variety of applications. This article will provide a detailed description of what Schedule 40 pipe is, its specifications, applications, and why it is important.