High strength, corrosion resistant weathering steel Q460NQR

Q460NQR weathering steel concept

Q460NQR weathering steel is a kind of alloy steel with high strength and atmospheric corrosion resistance. Among them, "Q" represents the yield strength, "460" indicates that the yield strength of the steel is not less than 460MPa, and "NQR" represents that it has good weather resistance. This steel is mainly used in the manufacture of structural parts that need to withstand heavy loads and high stresses, while requiring good corrosion resistance.

Q460NQR weathering steel features

High strength: Q460NQR weathering steel has high yield strength and tensile strength, and can withstand large loads and stresses.

Good weather resistance: By adding specific alloying elements, such as copper, chromium, nickel, etc., the steel significantly improves its atmospheric corrosion resistance and reduces structural damage caused by corrosion.

Excellent welding performance: Q460NQR weathering steel has good welding performance, which is convenient for various welding operations in engineering, ensuring the integrity and stability of the structure.

Wide range of applications: Due to its high strength and good weather resistance, Q460NQR weathering steel is widely used in construction, Bridges, vehicles, ships and other fields.

Mechanical properties of Q460NQR weathering steel

Q460NQR weathering steel has excellent mechanical properties, and its tensile strength, yield strength, elongation and other performance indicators are high. To be specific:

Tensile strength: usually not less than 500MPa, some grades may be higher.

Yield strength: not less than 460MPa, to ensure the stability of steel under heavy load and high stress.

Elongation: Generally between 15% and 20%, to ensure that the steel has a good plastic deformation ability when subjected to external force.

Q460NQR weathering steel application range

Q460NQR weathering steel is widely used in various fields because of its high strength and good weather resistance:

Construction field: It is used to manufacture load-bearing components and connecting parts of heavy-duty structures such as high-rise buildings, long-span structures and industrial plants.

Bridge engineering: Used to manufacture bearing and connecting parts of bridge structures such as road Bridges, railway Bridges and cross-sea Bridges, to withstand the load of vehicles and pedestrians, while resisting wind and rain erosion.

Vehicle manufacturing: Used to manufacture the bodies and components of vehicles such as cars and trains to improve the durability and safety of vehicles.

Ship manufacturing: Used to manufacture hull structural parts and decks and other components, withstand the erosion of waves and salt spray, to ensure the safety of navigation of the ship.

Other fields: Structural parts such as oil derrick, harbor building, oil platform and containers containing hydrogen sulfide corrosive medium in chemical petroleum equipment are also often made of Q460NQR weathering steel.