What is Q235NH Corten Steel Plate

Sep 15, 2025 Leave a message

Products Description

 

 

Q235NH Q235NH Corten Steel Plate is a type of weathering steel that meets the GB/T 4171 standard, combining good strength, toughness, and atmospheric corrosion resistance. The plate has a minimum yield strength of 235 MPa, sufficient to meet the strength requirements of various medium-load structures.

 

Q235NH steel maintains stable mechanical properties under different temperature conditions, making it suitable for use in a wide range of environments, including both high and low temperature areas.

 

Q235NH steel plate is not only suitable for vehicle chassis, bridge load-bearing components, communication and transmission towers, and container manufacturing, but is also widely used in port and dock equipment, light machinery structures, road guardrails, wind turbine towers, and urban infrastructure facilities.

 

Its excellent weathering performance allows the steel plate to resist corrosion during long-term outdoor exposure, reducing maintenance costs and extending the service life of structures.

 

In addition, Q235NH steel plate offers good processing performance, allowing welding, cutting, cold bending, and stamping to meet the structural processing requirements of various engineering projects.

 

These characteristics make Q235NH steel an economical and durable engineering material, suitable for use in a wide range of industrial and infrastructure construction applications.

 

China GB/T 4171 Q235NH Weather Resistant Steel Plate Chemical Composition

 

 

Grade C Si Mn P S Cu Cr Ni
Q235NH 0.13 0.10-0.40 0.20-0.60 0.03 0.03 0.25-0.55 0.40-0.80 0.65

 

 

China GB/T 4171 Q235NH Weather Resistant Steel Plate Mechanical Property

 

 

Mechanical Property

 

Yield Strength(MPa)

Tensile Strength(MPa)

% Elongation min

China GB/T 4171 Q235NH

215-235

360-510

24

 

Application

 

 

Q235NH steel plate is a structural steel that combines high strength with weathering performance, and it is widely used in various industrial and infrastructure applications.

 

The plate thickness typically ranges from 6 to 50 mm, with a yield strength ≥ 235 MPa, tensile strength of 360–500 MPa, and room temperature impact energy ≥ 27 J.

 

It offers excellent toughness, ductility, and fatigue resistance. Q235NH steel plate is not only suitable for automobile bodies, bridge structures, and container manufacturing, but is also commonly used in light machinery frames, building support components, transmission line towers, port lifting equipment, and offshore platform structures.

 

Due to its excellent corrosion resistance and long-term performance stability, Q235NH steel plate is also widely used in urban landscape installations, outdoor billboard supports, traffic sign posts, and guardrails-applications that require long-term exposure to atmospheric conditions.

 

In these uses, the steel plate can withstand prolonged atmospheric corrosion, with a typical service life of 20–30 years, significantly reducing maintenance costs and extending the lifespan of structures.

 

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Q235NH