When you're choosing a steel pipe, understanding the distinction between ERW (Electric Resistance Welded) and CEW (Cold Drawn Electric Welded) pipe is crucial. While both are used in many industries, they aren't the same. Simply put, CEW pipe starts as an ERW pipe and then undergoes an additional process to enhance its properties. Let's break down what each type is and which one is right for your project.

Proper control of the butt welding gap in boiler tubes is a critical part of the boiler fabrication process. A reasonable and standardized welding gap ensures uniform weld formation, optimal joint strength, sealing performance, and long-term safe operation of the boiler system. Adhering to industry specifications for butt welding gaps is essential for ensuring both structural integrity and operational reliability. This article will briefly introduce boiler tube welding gap standard.

As global demand for energy transmission continues to rise, the requirements for high-performance pipeline materials are becoming increasingly stringent. L555M straight seam steel pipe stands out for its excellent mechanical strength, weldability, and corrosion resistance, making it a preferred choice for high-pressure natural gas pipelines and challenging environments. This article provides a comprehensive overview of L555M's material properties, advanced manufacturing processes, international standard comparisons, and market development trends.

X46Q is a high-strength, high-toughness seamless steel pipe essential for modern industry. It is widely used in demanding applications across the petroleum, natural gas, chemical, and electric power sectors, providing critical support for industrial development. This article will briefly introduce what is X46Q seamless steel pipe.

As a key material in oil and gas transmission, API 5L X56N straight seam steel pipe plays a vital role in long-distance pipeline construction due to its high strength, excellent toughness, and superior weldability. Designed to comply with the API 5L standard, this pipeline-grade steel not only meets stringent industrial criteria but also achieves a balance between safety and cost-effectiveness through optimized production processes. The following sections provide an in-depth analysis from multiple perspectives including material characteristics, manufacturing processes, application scenarios, and market dynamics.

Thermal shock resistance refers to a material’s ability to withstand cracking, deformation, or performance degradation when subjected to rapid and extreme temperature fluctuations. This article will briefly introduce factors affecting the thermal shock resistance of seamless steel pipes.

Galvanized steel pipe (GI pipe) is a corrosion-resistant pipe featuring a protective zinc (Zn) coating applied to the surface of carbon steel or low-alloy steel substrates. This zinc layer effectively insulates the steel from air and moisture, preventing rust and significantly extending the pipe’s service life. This article will briefly introduce key differences between galvanized seamless pipe and galvanized welded pipe.

Seamless steel pipes are widely used in various transmission systems due to their corrosion resistance, high load-bearing capacity, and safety. Here's a selection guide of anticorrosion paint for seamless steel pipes.

Pipeline transportation is a widely adopted method for conveying fluid materials—such as gas, liquids, and slurry—across long distances through enclosed pipeline networks. Driven by a pressure differential generated by pumps or compressors, this system facilitates the directional flow of materials from production or storage sites to end users, including industrial facilities and consumers. This article will briefly introduce advantages of seamless pipes in pipeline transportation.

Seamless steel pipes are produced by piercing solid round billets of steel, resulting in a pipe with no weld seams along its body. Among them, ASTM A106 Grade B seamless pipes represent a widely used standard for carbon steel seamless pipes in the American system. This article explores the main chemical composition and material characteristics of A106B seamless pipes, highlighting their performance in demanding applications.

Seamless steel pipes (SMLS) are widely used in industries such as petroleum, chemical processing, and natural gas due to their high strength and excellent performance under pressure. To ensure the safe and reliable operation of pipeline systems, hydrostatic testing is a critical quality assurance procedure. This testing method verifies the pipe’s pressure-bearing capacity, tightness, and structural integrity before it is put into service.

The wall thickness deviation of seamless steel pipes is a critical indicator of their dimensional accuracy and overall quality. Acceptable deviation ranges vary depending on the applicable standard, manufacturing process (hot rolling, cold rolling, cold drawing), and nominal dimensions. Below is a detailed summary of widely adopted international and Chinese national standards regarding wall thickness deviation, compiled by Continental Steel Co., Ltd.