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.