Q390D is a high-strength low-alloy structural steel plate designed for applications requiring enhanced toughness and reliable performance in demanding environments.

According to GB/T 1591, Q390D provides a minimum yield strength of 390 MPa and requires impact testing at -20°C, making it suitable for outdoor structures and projects exposed to low-temperature conditions.

With higher strength than Q355 series steel and excellent weldability, Q390D is commonly selected for large-scale engineering projects where structural safety and long service life are important.

CEHE STEEL supplies Q390D steel plates for bridges, wind power structures, heavy machinery, and industrial fabrication projects.