What is the feature of Q295GNH corten steel plate

Q295GNH corten steel plate has a minimum yield strength of 295 MPa and a tensile strength ranging from 430 to 560 MPa, with excellent toughness, ductility, and fatigue resistance.

The plate thickness typically ranges from 6 to 50 mm, meeting the requirements for high load-bearing, impact resistance, and long-term durability.

Q295GNH  is mainly used for manufacturing trucks, shipping containers, buildings, towers, and other structural components that are exposed to atmospheric conditions for extended periods.

In these applications, Q295GNH  weathering steel can significantly extend service life, reduce material consumption and maintenance costs, while maintaining strong structural safety and durability.

Q295GNH weathering steel plate possesses a wide range of excellent properties. Firstly, in terms of mechanical performance, Q295GNH steel plate has a minimum yield strength of 295 MPa, a tensile strength ranging from 430 to 560 MPa, and a room temperature impact energy ≥ 27 J. It offers good toughness and ductility, can withstand high loads and impacts, and demonstrates excellent fatigue resistance, making it suitable for various high-load and long-term engineering applications.

In terms of processing performance, Q295GNH weathering steel plate exhibits excellent weldability, cuttability, and formability. It can be processed using various welding methods such as gas welding, TIG, and MIG, with the heat-affected zone impact energy ≥ 20 J.

Plate thicknesses of 6–50 mm can be cut by plasma or laser cutting, while cold bending allows an inner bend radius ≥ 1.5×plate thickness, with a stamping elongation ≥ 20%, meeting the requirements for different structural and equipment manufacturing needs.

Additionally, the steel has a Brinell hardness of HB 140–160, good wear resistance, short-term temperature resistance of 300–400℃, long-term operating temperature ≤ 200℃, and a fatigue limit under cyclic loading of approximately 0.4 times the tensile strength, allowing stable performance in complex environments over extended periods.

From an economic and environmental perspective, Q295GNH weathering steel plate benefits from its corrosion resistance and self-protecting properties, allowing material thickness to be reduced by 10–30% and lowering raw material usage.

Its naturally forming protective rust layer can replace paint, reducing maintenance costs by over 50%, and the service life typically exceeds 30 years, significantly reducing lifecycle costs and environmental impact.

Regarding application value, Q295GNH weathering steel plate is widely used in bridges, railway vehicles, automobile manufacturing, towers, shipping containers, port buildings, oil platforms, as well as containers in chemical and petroleum equipment exposed to corrosive media such as hydrogen sulfide and argon.

With a yield strength of 295 MPa, tensile strength of 430–560 MPa, and an atmospheric corrosion resistance factor ≥ 0.8, it can extend the service life of structures exposed to the atmosphere by 3–5 times, ensuring structural safety and durability. It is an ideal choice for engineering projects that require high reliability and low maintenance.

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If you are interested in Q295GNH hot rolled weathering steel sheet, please contact us directly. We will provide you with high quality Q295GNH weathering steel because we have a professional production team.

We export large quantities of Q295GNH weathering steel Plate to various countries every month.