FAQ

❓ What's the difference between High Weather Resistance Steel and Weldable Weathering Steel?

GNH weathering steel focuses on atmospheric corrosion resistance, while welded weathering steel (NQR) is specifically designed for welded structural applications with stricter weldability control.

❓ What are the typical applications of GNH and welded weathering steel?

GNH weathering steel: exterior cladding, architectural structures, decorative exposed structures, general non-load-bearing components.

Welded weathering steel (NQR): bridges, rail vehicles, containers, heavy machinery, and structural components that require welded load-bearing performance.

❓ How to choose between GNH and welded weathering steel?

If the project requires general corrosion resistance and the structure is non-welded or lightly welded, choose GNH weathering steel.

If the structure is heavily welded or load-bearing, select welded weathering steel (NQR) for enhanced weldability and structural safety.

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