Q460NH is a high‑strength weathering steel (yield strength ≥ 460 MPa) with excellent atmospheric corrosion resistance. It is used where high load‑bearing capacity + long‑term outdoor durability is required.
1. Structural Engineering & Bridges
Main bridge girders, crossbeams, bridge deck components
High‑rise steel structures, large‑span portal frames
Tower structures, communication towers, transmission towersReason: High strength reduces section size and weight while maintaining weathering performance.
2. Construction Machinery & Mining Equipment
Excavator booms, loader arms, bulldozer frames
Mining truck bodies, dump truck chassis
Crane booms, support structuresReason: Resists impact, fatigue, and outdoor atmospheric corrosion.
3. Railway & Transportation
Freight wagon bodies, underframe structures
Container main frames and corner fittings
Special transport vehicle load‑bearing parts
4. Port & Heavy Industrial Facilities
Gantry cranes, quay cranes, handling equipment
Pipe supports, trestles, industrial steel platformsSuitable for coastal/mild industrial environments without frequent painting.
5. Large‑Scale Stadiums & Public Buildings
Space frame structures, roof trusses, cantilever components
Architectural exterior structures requiring weathering steel aestheticsHigh strength allows lighter, more slender designs.
6. Special Mechanical Structures
High‑strength welded structures under dynamic load
Wind turbine parts, base components
Offshore platform secondary structures (non‑splash zones)
7. Landscape & Architectural Art
Large outdoor sculptures, landscape walls
Decorative steel structures with stable patina appearance
