Engineering steel requirements vary by project, and the types of steel also differ accordingly. Square and rectangular steel pipes include both square and rectangular tubular products, so they have specific storage requirements. Below are the key storage guidelines:
- The storage area or warehouse for seamless square steel pipes shall be clean and well-drained, away from factories and mines that generate harmful gases or dust. On-site, weeds and all debris must be cleared to keep the steel clean.
- The warehouse shall be free of corrosive substances such as acids, alkalis, salts, and lime that can damage steel. Different types of steel shall be stacked separately with clear identification to avoid mixing and prevent corrosion caused by mutual contact.
- Heavy steel products (e.g., rails, heavy steel plates, large-diameter pipes, and fasteners) can be stored outdoors.
- Medium-sized steel sections, wire rods, steel bars, medium-diameter pipes, and steel wire ropes shall be stored in well-ventilated sheds, with the bottom layer properly covered with waterproof cloth.
- Thin-gauge cold-rolled steel plates, silicon steel sheets, thin-walled small-diameter pipes, hot-rolled/ cold-drawn special steel, and high-value, corrosion-sensitive non-metallic accessories shall be stored in enclosed warehouses.
- The warehouse shall be selected based on climatic conditions, generally adopting semi-open or enclosed warehouses (i.e., warehouses with roofs, steel frames, windows/doors, and ventilation equipment). It is required to ventilate on sunny days, prevent water ingress on rainy days, and maintain appropriate storage conditions at all times.
