Constructed from premium steel for durability and quietness, the made of steel peaceful iron courtyard door prioritizes material integrity. The door panel is 3–4mm thick Q345B high-strength steel, with an internal layer of mass-loaded vinyl and fiberglass insulation, achieving sound reduction of ≥30dB. All steel components—including hinges, frames, and reinforcements—undergo hot-dip galvanization (zinc coating ≥85μm) followed by powder coating, ensuring corrosion resistance. Hinges are heavy-duty steel units with self-lubricating bushings, supporting weights up to 300kg and enabling smooth operation. The design features fully welded seams ground smooth for strength and aesthetics, with rounded edges for safety. This door is ideal for industrial settings, commercial buildings, or residential properties, offering the reliability of steel construction combined with peaceful functionality that withstands daily use.