Hot rolled seamless pipes are formed by heating a solid billet of stainless steel and then rolling it to produce a cylindrical shape. This process allows for the quick and efficient production of large-diameter pipes with improved mechanical properties. Hot rolled seamless pipes are commonly used in applications that require high strength and resistance to pressure, such as oil and gas pipelines, power generation, and structural components.

Cold rolled seamless pipes are produced by cold rolling stainless steel strips or sheets to form pipes. This process helps in achieving precise dimensions, improved surface finish, and tighter tolerances. Cold rolled seamless pipes are commonly used in applications where dimensional accuracy and a smooth surface are critical, such as in the automotive industry, precision engineering, and instrumentation.

Cold drawn seamless pipes are created by drawing hot-rolled seamless pipes through a die to reduce their diameter and achieve the desired dimensions and surface finish. This process improves the pipe’s mechanical properties, including increased tensile strength and improved surface quality. Cold drawn seamless pipes find applications in industries such as oil and gas, petrochemicals, and hydraulic systems, where precision and superior mechanical properties are essential.

Extrusion is a manufacturing process that involves forcing stainless steel billets or ingots through a die to produce pipes of various shapes and sizes. Extruded seamless pipes can have complex cross-sectional shapes and are suitable for specialized applications where specific geometries or enhanced mechanical properties are required. They are often used in industries like aerospace, automotive, and construction.