Q355NC is a normalized high-strength low-alloy structural steel plate with improved impact toughness compared with standard structural grades. According to GB/T 1591, Q355NC requires Charpy impact testing at -20°C, making it suitable for projects exposed to colder environments.

The steel grade combines high strength, good weldability, and reliable toughness, making it a practical choice for construction, infrastructure, and heavy fabrication applications.

CEHE STEEL provides Q355NC steel plates in various thicknesses and sizes, supporting cutting, inspection, and customized supply requirements.