[27SIMN Steel Plate Specifications and Models - 27SIMN Steel Plate Introduction].
1. Introduction to 27simn steel plate.
27SIMN steel plate can be cut for retail, 27SIMN steel plate is a high-strength alloy structural steel, which belongs to the grade in the Chinese national standard, and is named because it contains high silicon and manganese elements. This steel grade has excellent mechanical properties and welding properties, and is widely used in important fields such as bridges, ships, construction, petrochemical industry, aerospace and so on.
2. 27simn steel plate specifications and models.
There are many specifications and models of 27SIMN steel plate, and the following are some common specifications and models and corresponding characteristics:
1.Q275 steel pipe: mainly used for supporting and load-bearing structures in bridges, ships, buildings and other fields. Its strength is higher, but the toughness is slightly worse, and the welding performance is good.
2.Q345 steel pipe: It is a low-alloy high-strength structural steel with good comprehensive properties, which is widely used in buildings, bridges, ships, vehicles, pressure vessels, etc. It has good low-temperature impact toughness and good corrosion resistance.
3.Q390GJC steel plate: It is a high-strength low-alloy structural steel plate, which is mainly used in high-rise buildings, long-span structures, bridges and other fields. Its strength and toughness are high, and it has good welding performance and corrosion resistance.
4.Q420GJC steel plate: It is a high-strength structural steel plate with high strength, high toughness and low welding crack susceptibility, which is suitable for marine engineering, petrochemical industry, pressure vessel and other fields. It has high fatigue resistance and corrosion resistance.
5.Q460 steel plate: It is a high-strength structural steel plate with high strength, high toughness and good fatigue resistance, which is widely used in large vehicles, bridges, buildings and other fields. It has good welding performance and corrosion resistance, and is able to withstand large loads and impacts.
3. Application scenarios of 27simn steel plates.
1.Bridge engineering: 27SIMN steel plate has become one of the commonly used materials in bridge engineering because of its high strength and good welding performance. It is mainly used to manufacture load-bearing structures and connectors of bridges, such as piers, beams and plates, etc.
2.Shipbuilding: A large amount of high-strength steel is required in shipbuilding, and 27simn steel plate has become one of the first choices. It is mainly used to manufacture hull structures, decks, cabins and other parts to improve the carrying capacity and navigation stability of ships.
3.Construction: In the construction field, 27SIMN steel plate is mainly used in high-rise buildings, long-span structures and other projects that require high-strength materials. It can improve the bearing capacity and seismic performance of the building, and ensure the safety and stability of the building.
4.Petrochemical: In the petrochemical industry, 27simn steel plate is mainly used to manufacture pressure vessels, pipelines and other equipment. It can withstand high temperatures, high pressures and corrosive media to ensure the safe operation of equipment and pipelines.
5.Aerospace: In the aerospace field, the requirements for materials are extremely high, and 27SIMN steel plate has become one of the ideal materials for manufacturing equipment such as aircraft and rockets because of its high strength, high toughness, good welding performance and corrosion resistance.
Fourth, the production process of 27simn steel plate.
The production process of 27simn steel plate mainly includes the following steps:
1.Steelmaking: Steelmaking is made by electric furnace or converter, and the refining furnace desulfurizes, deoxidizes and removes impurities to improve the quality and purity of the steel.
2.Rolling: The milled ingots are rolled according to the required specification thickness to form a steel plate. During the rolling process, the temperature and rolling force need to be strictly controlled to ensure the quality and performance of the steel plate.
3.Heat treatment: According to different specifications and uses, different heat treatment processes are carried out on the rolled steel plate, such as quenching, tempering, etc., to obtain the required mechanical and physical properties.
4.Surface treatment: The steel plate is surface coated or coated to improve its corrosion resistance and service life.
5.Testing and inspection: Conduct quality inspection and inspection of the produced steel plate to ensure that it meets the relevant standards and user requirements.
Fifth, the future development prospects of 27simn steel plate.
With the advancement of science and technology and the development of society, the demand for high-strength steel is increasing. As a high-performance structural material, the application field of 27SIMN steel plate will continue to expand. In the future, with the continuous emergence of new materials and the continuous innovation of application technology, 27SIMN steel plate will be applied and developed in a wider range of fields. At the same time, with the improvement of environmental awareness and the reduction of energy consumption, the production process and technology of 27SIMN steel plate will also be more environmentally friendly and energy-saving, contributing to sustainable development.