Corrosion-resistant steel pipes are those that have been processed through anti-corrosion techniques, effectively preventing or slowing down the corrosion caused by chemical or electrochemical reactions during transportation and use.

Steel pipes can be categorized by shape into: round pipes, square pipes, rectangular pipes, octagonal pipes, hexagonal pipes, D-shaped pipes, pentagonal pipes, and other special-shaped pipes such as complex cross-section pipes, double concave pipes, five-petaled plum blossom-shaped pipes, conical pipes, corrugated pipes, melon-shaped pipes, double convex pipes, etc.

Steel pipes are categorized by their applications, including pipeline steel pipes, heat-exchange equipment steel pipes, machinery industry steel pipes, oil and geological drilling steel pipes, container steel pipes, chemical industry steel pipes, and special-purpose steel pipes. They are widely used in long-distance water conveyance, oil, chemical, natural gas, thermal power, wastewater treatment, water source, bridge, steel structure, and offshore water conveyance pile projects.