Pipeline anti-corrosion encompasses measures aimed at retarding or preventing the degradation of pipelines caused by the chemical and electrochemical effects of internal and external media, or the metabolic activities of microorganisms. The primary purpose of pipeline anti-corrosion is to impede corrosion resulting from chemical or electrochemical reactions within pipelines. Two predominant anti-corrosion methods are commonly employed for petroleum steel casing pipes: coating anti-corrosion and electrical protection.

The quality of welded pipes (SSAW/LSAW/ERW) is significantly influenced by the welding seam, which is considered the lifeline of these pipes. As such, it is imperative to conduct a comprehensive analysis and address quality defects related to the welded section.

Butt welding elbows are elbows that undergo a hot forming or forging process, and their primary method of connection is through direct butt welding to the pipe. These elbows are categorized based on their curvature radius, resulting in two main types: long radius butt welding elbows and short radius elbows. Additionally, they are classified according to pressure levels, aligning with approximately seventeen types that adhere to American pipe standards, with STD and XS being the most commonly utilized. Furthermore, based on the elbow angle, variations include 45-degree butt welding elbows, 90-degree butt welding elbows, 180-degree butt welding elbows, and elbows with other angles. In terms of material, butt welding elbows can be further divided into carbon steel elbows, alloy steel elbows, and stainless steel elbows.

Flanges play a crucial role in connecting pipes, valves, and other components in a piping system. The processing and connection of flanges involve specific steps and considerations to ensure a reliable and secure connection. Here is an overview of the flange processing and connection process:

ERW (Electric Resistance Welding) is a common method used to manufacture steel pipes, including ERW steel pipes. The process involves the use of electrical current to heat the edges of the steel strip or coil to a point where they can be fused together. Below are the key steps in the ERW steel pipe welding process.

SSAW (Spiral Submerged Arc Welded) steel pipes are commonly used in various applications, and their surface treatment is essential to enhance durability, corrosion resistance, and overall performance. Here are some common surface treatments for SSAW steel pipes.

Manufacturing stainless steel equal tees involves several methods depending on the type of tee and the desired specifications. One common method is through hot forming or cold forming processes. Today, United Steel Industry will talk about the general processing methods for creating stainless steel equal tees.

Stainless steel pipe caps are end fittings or closures used to seal the ends of stainless steel pipes. Stainless steel pipe caps are typically designed to fit over the outside of the pipe's end and can be welded, threaded, or clamped in place, depending on the specific requirements of the application. They are available in various sizes, shapes, and materials, allowing them to be customized to suit the specific needs of different industries and projects. Read on to learn more about stainless steel pipe caps.

Welded steel pipes are cylindrical products crafted from flat sheets, known as "blanks," which are shaped, bent, and readied for the welding process. The manufacturing of welded steel pipes is characterized by its straightforward production process, resulting in high efficiency, a wide range of available specifications, and the utilization of minimal equipment. Welded steel pipes come in various types, each designed for specific applications based on their properties, dimensions, and intended use. Here are different types of welded steel pipes categorized by their common applications.

Welded steel pipes, also known as seamed steel pipes, are created by taking pipe blanks (comprising steel plates and steel strips) and shaping them into pipes with the desired cross-sectional dimensions using various forming techniques. Subsequently, the seams are welded together using various welding methods. In contrast to seamless steel pipes, welded steel pipes offer advantages such as enhanced product precision, particularly in terms of wall thickness, utilization of uncomplicated primary equipment, minimal floor space requirements, the ability to maintain continuous production, flexibility in manufacturing, and a broad spectrum of unit product options.

Oil casing collapse is a common form of oil casing damage. Therefore, the anti-collapse performance of oil casing has always been the focus of attention. Improving the collapse resistance of oil casing pipes is crucial for ensuring the integrity and safety of oil wells. Collapse resistance is the ability of the casing pipe to withstand external pressure without deforming or collapsing. Here are some ways to enhance the collapse resistance of oil casing pipes.

Buried oil pipeline anti-corrosion technology is a key part to ensure the long-term operation of the pipeline system and reduce corrosion damage. The selection and implementation of pipeline anticorrosion technologies depends on a variety of factors, including pipeline materials, underground environment, transportation media, climatic conditions and regulatory requirements. The following are some common anti-corrosion technologies for buried oil pipelines.

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ERW (Electric Resistance Welded) steel pipes are made from steel coils or steel plates and the weld seam runs parallel to the pipe. They are commonly applied to transport oil, natural gas and other vapor-liquid objects, and can meet various requirements of high and low pressure. This article will introduce in detail the quality evaluation process of ERW steel pipes. Read on to learn more.

When welded steel pipe is manufactured, a steel plate or strip is bent and subsequently welded into either a circular, traditional pipe shape or a square shape, resulting in a seam on its body. Today, we will introduce in detail GB standards for welded steel pipes.

When welded steel pipe is manufactured, a steel plate or strip is bent and subsequently welded into either a circular, traditional pipe shape or a square shape, resulting in a seam on its body. Today, we will introduce in detail GB standards for welded steel pipes.

API (American Petroleum Institute) tubing is used in the oil and gas industry for various applications, primarily in the production and transportation of oil and gas from wellheads to processing facilities. These tubes are an integral part of the downhole equipment in oil and gas wells. The manufacturing process and types of API tubing can vary depending on the specific requirements of the well and the conditions it will operate under.

Duplex steel is made up of two distinct microstructures: ferrite and austenite, which makes it more difficult to weld than other types of stainless steel. This article provides a comprehensive guide to welding duplex stainless steel pipe so that you can make the most use of your work.