Q355NB is a normalized high-strength structural steel plate specified under GB/T 1591. It provides a minimum yield strength of 355 MPa and is supplied in a normalized or normalized rolling condition to achieve stable mechanical properties.

With good weldability, strength, and toughness, Q355NB is commonly used for steel structures, machinery components, industrial equipment, and general engineering applications where reliable performance and cost efficiency are required.

CEHE STEEL supplies Q355NB steel plates with customized thicknesses, export-quality inspection, and complete Mill Test Certificates (MTC) for international fabrication projects.