Straight seam steel pipes can be categorized into high-frequency straight seam pipes and submerged arc welded (SAW) straight seam pipes based on their production processes. Here's an overview of the production process of straight seam steel pipes.

Carbon steel ERW pipe, short for Electric Resistance Welded pipe, is a tubular product manufactured by joining the longitudinal edges of steel plates or strips through resistance welding. This technique uses electrical current to generate heat at the material edges, achieving a strong, continuous weld without the need for external filler materials. This article will briefly introduce carbon steel ERW pipe production process.

Thick-walled welded steel pipes, made from precipitation-strengthened nickel-based high-temperature alloys, exhibit excellent mechanical and corrosion-resistant properties at elevated temperatures. This article will briefly introduce thermal deformation and microstructure evolution of thick-walled welded steel pipes.

With the rapid development of the oil and gas industry, global pipeline construction has entered a phase of accelerated growth. As pipeline operating pressures increase, the requirements for the welding quality of steel pipes used in oil and gas transport have become more stringent. Among various performance parameters, impact toughness of the weld is a critical factor that directly affects pipeline safety and durability. This article outlines the key factors influencing the impact toughness of Electric Resistance Welded (ERW) pipe welds.

In the steel industry, distinguishing between carbon steel plates and ordinary steel plates can sometimes be confusing. While the terms are often used interchangeably, they refer to different categories of steel products with distinct compositions and applications. This article will briefly introduce differences between carbon steel plate and ordinary steel plate.

ERW steel pipes are extensively utilized in the construction industry due to their high production efficiency, economic benefits, and reliable performance. They are especially favored in structural support, fluid transport, and temporary engineering. Here’s a breakdown of their key advantages and practical applications.

With the continuous advancement of high-quality strip steel rolling technology, along with improvements in welding and inspection techniques, the overall quality and performance of welded steel pipes have significantly improved. These developments have expanded the variety and specifications available, leading to the gradual replacement of seamless steel pipes in numerous applications. Compared to seamless pipes, welded pipes offer the advantages of lower cost and higher production efficiency. So, what should be taken into consideration during the installation of welded steel pipes? Below are the key aspects.

As the demand for energy infrastructure expands—especially with major national projects like the West-East Gas Transmission Project—the role of domestically produced large-diameter straight seam submerged arc welded (LSAW) steel pipes has become increasingly prominent. These pipes are crucial for high-pressure oil and gas transport, and their quality directly impacts pipeline safety and performance. Below are the core processing steps and main equipment involved in manufacturing high-precision LSAW steel pipes.

When selecting spiral steel pipes for engineering or industrial purposes, ensuring their quality is crucial for safety, durability, and performance. Below are several practical methods to help assess the quality of spiral steel pipes.

304 stainless steel plate is one of the most widely used and versatile stainless steels. It’s an austenitic stainless steel typically containing 16% to 18% chromium and up to 8% to 10.5% nickel. Once you understand the material characteristics, the next step is to learn how to choose high-quality 304 stainless steel plates. With a bit of knowledge and attention to detail, you can confidently make the right purchase and avoid common pitfalls.

The HSN (Harmonized System of Nomenclature) is a globally standardized coding system used by customs authorities to classify goods in a uniform manner. It plays a vital role in streamlining international trade, facilitating commodity classification, customs clearance, taxation, and trade statistics. For carbon steel pipes, accurate identification of the HSN code is essential to ensure smooth and compliant import and export procedures. The HSN code typically consists of ten digits, each segment representing specific attributes of the product. Correctly assigning the HSN code not only helps customs officials identify goods quickly but also supports efficient trade operations and regulatory compliance.

In industrial applications, non-standard straight seam welded steel pipes often require secondary processing to meet specific performance or dimensional requirements. This article will briefly introduce common processing methods for non-standard straight seam welded steel pipes in industry.