Q460NE steel plate is a kind of low-alloy high-strength structural steel, with excellent strength, toughness and welding properties, which is widely used in construction, bridges, ships, vehicles, pressure vessels and other fields. The following will introduce the characteristics, chemical composition, mechanical properties, welding properties and other aspects of Q460NE steel plate in detail.
First, the characteristics of Q460NE steel plate.
Q460NE steel plate is a low-alloy high-strength structural steel with the following characteristics:
1.High strength: Q460NE steel plate has high tensile strength and yield point, can withstand large loads, and is suitable for heavy-duty structures such as buildings, bridges, ships, and vehicles.
2.Good toughness: Q460NE steel plate has good low-temperature toughness, which can maintain its mechanical properties at lower temperatures, and is suitable for construction and industrial equipment in cold zone areas.
3.Good welding performance: Q460NE steel plate has good welding performance, easy to carry out welding operation, and is suitable for the manufacture and maintenance of large structures such as buildings, bridges, ships, etc.
4.Good corrosion resistance: Q460NE steel plate has good corrosion resistance, can be used for a long time under harsh environmental conditions, and is suitable for marine engineering, chemical equipment and other fields.
5.Good economy: Compared with other high-grade steels, Q460NE steel plate has a lower cost and is suitable for large-scale applications and industrial production.
The surface of Q460NE steel plate is not allowed to have cracks, bubbles, scars, folding and mixing and other defects, if there are the above surface defects, it is allowed to be cleaned up, and the depth of packing is calculated from the practical standard of the steel plate, and the minimum thickness of the steel plate shall be guaranteed, and the minimum thickness of the steel plate shall be guaranteed, and the defect shall be smooth and free of edges and corners, and the steel plate shall not have delamination, and other defects shall be allowed to exist, and the depth shall be calculated from the practical standard of the steel plate, and shall not exceed half of the thickness tolerance of the steel plate, and the thickness of the defect shall not be less than the allowable thickness of the steel plate.
Second, the chemical composition of Q460NE steel plate.
The chemical composition of Q460NE steel plate complies with the provisions of GB T 1591-2018 "Low Alloy High Strength Structural Steel". Its main chemical components include carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel and other elements. Among them, the carbon content is 018%-0.28% and 050%-1.00% between, manganese content in 120%-1.between 60%, the phosphorus content does not exceed 0030%, sulfur content does not exceed 0030%, chromium content at 080%-1.20% and 030%-0.80%. In addition, according to different use needs, an appropriate amount of titanium, vanadium and other elements can also be added to improve the mechanical properties and corrosion resistance of steel plates.
3. Mechanical properties of Q460Ne steel plate.
The mechanical properties of Q460NE steel plate comply with the provisions of GB T 1591-2018 "Low Alloy High Strength Structural Steel". Its tensile strength is between 460-540MPa, the yield point is between 380-450MPa, and the elongation is between 17%-21%. In addition, Q460NE steel plate also has good low-temperature toughness, which is able to maintain its mechanical properties at lower temperatures.
Fourth, the welding performance of Q460Ne steel plate.
Q460NE steel plate has good welding performance and is easy to weld operation. Its welded joints have good strength and toughness, and can meet the manufacturing and maintenance needs of large structures such as buildings, bridges, and ships. In the welding process, appropriate welding processes and measures should be taken, such as selecting appropriate welding materials, preheating and post-heat treatment, etc., to ensure the welding quality and mechanical properties of the joint.
5. Summary. Q460NE steel plate is a kind of low-alloy high-strength structural steel, with excellent strength, toughness and welding properties, which is widely used in construction, bridges, ships, vehicles, pressure vessels and other fields. Its chemical composition conforms to the provisions of GB T 1591-2018 "Low Alloy High Strength Structural Steel", with good mechanical properties and easy welding performance. In practical application, appropriate grades and specifications should be selected according to the specific use environment and needs, and reasonable welding processes and heat treatment measures should be carried out to ensure their mechanical properties and long-term reliability.