Pickled seamless pipe refers to seamless steel pipes that have undergone a specialized surface treatment process known as pickling. This treatment significantly improves the pipe’s surface quality, cleanliness, and corrosion resistance, making it ideal for high-performance industrial applications. Here's an introduction to pickled seamless pipe.

12CrMoG high-pressure seamless steel pipe is a type of alloy steel pipe widely used in high-temperature and high-pressure applications, such as in the petrochemical and power generation industries. It features excellent mechanical strength, thermal stability, and corrosion resistance, making it a popular material for critical piping systems and boiler components.

This article will briefly introduce how to choose a reliable seamless steel pipe supplier.

Seamless steel pipe is a specialized type of pipe manufactured through a unique process that eliminates the need for welding. It features a smooth surface, consistent wall thickness, and excellent internal quality. These pipes are produced by subjecting steel billets to hot rolling, cold drawing, cold heading, and cold rolling under the action of a perforator and puller, resulting in a strong and uniform structure. This article will briefly introduce outer diameter size of seamless steel pipe.

The pre-finishing welding technique represents the most advanced tube-forming method in the production of spiral submerged arc welded (SSAW) steel pipes. Its core advantage lies in effectively separating the forming and welding stages, thereby eliminating mutual interference. This enables the high-speed forming of pipe bodies to be seamlessly combined with the controlled, low-speed welding process. As a result, both production efficiency and product quality are significantly improved, while overall manufacturing costs are reduced. This article will talk about prefinishing welding of SSAW steel pipe.

Q420QC straight seam welded steel pipe is a high-strength low-alloy (HSLA) steel pipe widely used in oil and gas pipelines, bridge construction, building frameworks, and industrial infrastructure. With its excellent mechanical performance, superior weldability, and outstanding weather resistance, Q420QC pipe has become a top choice for engineers and project developers worldwide. In this article, we explore the features, manufacturing process, applications, and market outlook of Q420QC straight seam welded steel pipes–ideal for professionals seeking reliable and durable structural pipe solutions.

Transporting spiral steel pipes (SSAW pipes) requires careful attention to ensure the pipes are protected from damage and environmental factors during loading, unloading, and transportation. Proper packaging and handling can significantly extend the life of the pipes and maintain their quality for subsequent use. Below are the essential protection measures for transporting spiral steel pipes.

Spiral Submerged Arc Welded (SSAW) pipe, also known as spiral steel pipe, is a type of welded steel pipe characterized by its spiral weld seam. It is manufactured by forming hot-rolled strip steel into a spiral shape at room temperature, followed by welding using an automatic double-wire, double-sided submerged arc welding process. During the production or inspection process, weld defects such as arc interruption, burn-through, slag inclusion, porosity, and cracks may occur. These flaws must be addressed through a process known as repair welding, which involves reworking the defective welds to restore structural integrity and compliance with quality standards.

Spiral Submerged Arc Welded (SSAW) steel pipe is manufactured from hot-rolled steel coils. The strip is fed into a forming unit where it is helically rolled into a cylindrical shape at ambient temperature. Welding is performed using an advanced double-wire, double-sided submerged arc welding (SAW) technique, ensuring high weld integrity and strength. During production, the strip steel passes through a series of rollers, gradually forming a spiral tube blank with a continuous seam. The extrusion rollers are adjusted to maintain a weld gap between 1 to 3 mm, ensuring precise alignment and seamless joint formation. Proper control of this gap is crucial for achieving a strong and reliable weld.

Q390NB steel pipe is a low-alloy high-strength structural steel product, widely used in bridges, buildings, shipbuilding, and vehicle manufacturing. Its superior mechanical properties and weldability make it a key material for modern engineering structures. This article provides a comprehensive overview of its material characteristics, manufacturing process, application scenarios, and market trends.

Q390C straight seam steel pipe, straight seam pipe, and submerged arc welded pipe are all high-strength structural steel pipes widely used across engineering fields requiring superior mechanical performance and load-bearing capacity. Below is a detailed overview of these three types.

As a flagship product of low-alloy high-strength structural steel, Q390GJB straight seam welded steel pipe is extensively used in construction, bridge engineering, machinery manufacturing, and related sectors. While both Q390GJB and Q390GJC belong to the Q390 series, they exhibit significant differences in chemical composition, mechanical performance, applicable standards, and intended uses—necessitating a multidimensional technical comparison.