Cold drawn steel pipe is produced by drawing hot - rolled or cold - rolled seamless steel pipes through a die at room temperature.
It features extremely precise dimensions with very strict control over outer diameter, inner diameter, and wall thickness. The surface quality is superior, with high smoothness and minimal surface defects. The cold drawing process enhances the mechanical properties, giving it high tensile strength, yield strength, and toughness. It can be made into pipes with complex cross - sectional shapes and very small diameters, which is difficult for other processes.

Cold drawn steel pipe is produced by drawing hot - rolled or cold - rolled seamless steel pipes through a die at room temperature.
It features extremely precise dimensions with very strict control over outer diameter, inner diameter, and wall thickness. The surface quality is superior, with high smoothness and minimal surface defects. The cold drawing process enhances the mechanical properties, giving it high tensile strength, yield strength, and toughness. It can be made into pipes with complex cross - sectional shapes and very small diameters, which is difficult for other processes.

Cold drawn steel pipe is produced by drawing hot - rolled or cold - rolled seamless steel pipes through a die at room temperature.
It features extremely precise dimensions with very strict control over outer diameter, inner diameter, and wall thickness. The surface quality is superior, with high smoothness and minimal surface defects. The cold drawing process enhances the mechanical properties, giving it high tensile strength, yield strength, and toughness. It can be made into pipes with complex cross - sectional shapes and very small diameters, which is difficult for other processes.

We offer a wide range of high-quality seamless steel pipes made from various materials such as 10#, 45#, and more. Available in hot rolled, cold rolled, and cold drawn specifications, our pipes are suitable for fluid, boiler, gas, and oil applications.

American standard ASME/AISI/ASTM standard 4140 alloy seamless steel pipe is the core material in the fields of machinery manufacturing, petrochemical industry, automobile industry, etc., with high strength, wear resistance and corrosion resistance. As a medium carbon chromium-molybdenum alloy structural steel, 4140 achieves excellent comprehensive performance through quenching and tempering heat treatment, and is widely used in high-pressure pipelines, mechanical parts and oil drilling equipment.
Alloy composition: Contains 0.38-0.43% carbon (C), 0.75-1.00% manganese (Mn), 0.80-1.10% chromium (Cr) and 0.15-0.25% molybdenum (Mo). The grain structure is optimized through microalloying technology to improve hardenability and fatigue resistance.

Cold drawn steel pipe is produced by drawing hot - rolled or cold - rolled seamless steel pipes through a die at room temperature.
It features extremely precise dimensions with very strict control over outer diameter, inner diameter, and wall thickness. The surface quality is superior, with high smoothness and minimal surface defects. The cold drawing process enhances the mechanical properties, giving it high tensile strength, yield strength, and toughness. It can be made into pipes with complex cross - sectional shapes and very small diameters, which is difficult for other processes.

Anti-corrosion steel pipe is a specially treated steel pipe designed to prevent or slow down corrosion caused by chemical or electrochemical reactions during transportation and use. ‌ Anti-corrosion steel pipe combines the strength of steel and the anti-corrosion performance of anti-corrosion materials by forming an anti-corrosion coating on the surface of the steel pipe or using anti-corrosion materials, thereby effectively extending the service life of the steel pipe and ensuring its safe and stable operation in harsh environments. ‌

Line pipe is a pipe used to transport liquid and gaseous fuels such as petroleum, natural gas, water and oil. ‌It is mainly transported by underground burial and is mainly used in the oil and gas industry. Line pipes can be divided into two types: seamless welding and seam welding according to different connection methods. Seamless welded line pipes have good air tightness but poor flexibility and are suitable for long-term fixed routes; while seam welded line pipes can be changed in direction by plasma cutting machines, but have poor air tightness. ‌

Spiral pipe, also known as spiral steel pipe or spiral welded pipe, is made of low-carbon structural steel or low-alloy structural steel strip rolled into a tube blank at a certain spiral angle, and then the tube seam is welded. ‌ This structure makes it possible to produce large diameter steel pipes using narrower strips. The specifications of spiral pipes are usually expressed in terms of outer diameter and wall thickness.