A high-precision steel pipe material processed by cold drawing or hot rolling, featuring no oxidation layer on the inner and outer walls, high pressure resistance without leakage, high precision, high luster, ease of cold bending without deformation, and no cracks during expansion or flattening, is primarily used for manufacturing pneumatic or hydraulic components such as cylinders, which can be seamless or welded pipes. The chemical composition of precision steel pipes includes carbon (C), silicon (Si), manganese (Mn), sulfur (S), phosphorus (P), and chromium (Cr). Compared to round steel and other solid steel products, precision steel pipes have the same bending and torsional strength but are lighter in weight, making them an economical section steel widely used in the manufacturing of structural components and mechanical parts.