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.

ASTM A333 Gr.6 is a seamless steel pipe material developed under the standards of the American Society for Testing and Materials (ASTM), specifically engineered for service in low-temperature environments down to -50°F (-45°C) or below. Owing to its exceptional toughness and impact resistance under cryogenic conditions, it is widely adopted in critical sectors such as petroleum, chemical processing, and natural gas transportation.

Q620E straight seam welded steel pipes, a type of high-strength low-alloy structural steel pipe, have demonstrated significant value in key industries such as oil and gas, engineering machinery, and bridge construction. Their outstanding mechanical properties and weldability make them particularly well-suited for high-pressure, high-stress, and low-temperature applications.

Seamless carbon steel pipe is a hollow cylindrical product made from carbon steel through processes such as hot rolling, cold rolling, or cold drawing. Its defining feature is the absence of welded joints along the pipe wall, giving it superior strength and integrity. Thanks to its excellent toughness, high pressure resistance, and ability to withstand complex stresses, it sees broad application in industries like petrochemicals, power generation, and construction. This article will briefly introduce grades and standards of seamless carbon steel pipes.

Carbon seamless steel pipes are among the most widely used types of steel pipes, primarily composed of iron and carbon. Based on their carbon content, they are generally categorized into low, medium, and high carbon steels. This article will briefly introduce common materials of carbon seamless steel pipes.

This article will briefly introduce X80Q seamless steel pipes commonly used in industrial projects.

ASTM A335 P22 seamless steel pipes must comply with TSG D7002–Pressure Piping Component Type Test Regulations, ensuring safety and performance in high-temperature and high-pressure environments. Here's an overview of ASTM A335 P22 seamless steel pipes.