Municipal Infrastructure Engineering: High Strength + Corrosion Resistance, Matching Complex Load and Corrosion Environment

Channel steel in municipal roads, water supply and drainage pipe networks, bridge guardrails, and urban landscape projects needs to withstand complex working conditions such as vehicle rolling, ground settlement, water corrosion, and crowd load, and some parts are key load-bearing structures.

Selection Suggestions: Q235B hot-dip galvanized channel steel is selected for medium and small load parts (such as municipal guardrails, small pipe network supports); Q345B hot-dip galvanized channel steel is selected for heavy load and key load-bearing parts (such as bridge supports, heavy water supply and drainage pipe network supports). Coastal and riverside municipal projects need additional requirements of thickened zinc layer + triple passivation to improve salt spray and water corrosion resistance.Construction Engineering: High Load-bearing + Adaptability, Meeting Building Structure and Seismic RequirementsIn construction engineering, channel steel is mainly used for main structural support, curtain wall brackets, indoor steel structures, basement pipe network supports and other parts, which need to match the seismic grade, load-bearing requirements and installation space of the building.

Selection Suggestions: Q235B hot-dip galvanized channel steel is selected for low-rise buildings, indoor conventional supports, and curtain wall secondary brackets; Q345B hot-dip galvanized channel steel is selected for high-rise buildings, long-span steel structures, curtain wall main brackets, and key load-bearing parts of basements; outdoor curtain wall brackets need to be products with triple passivation process to avoid structural loosening caused by outdoor rain corrosion.