1. Introduction of Q690E steel plate.
Q690E steel plate is a high-strength structural steel plate with excellent mechanical properties and good welding properties, which is widely used in bridges, ships, petrochemical industry, construction and other fields.
Second, Q690E steel plate implementation standard.
Q690E steel plate is implemented according to GB T 16270-2009 standard.
3. Chemical composition of Q690E steel plate.
Fourth, Q690E steel plate mechanical properties.
5. Performance characteristics of Q690E steel plate.
1.Strength.
Q690E steel plate has high yield strength and tensile strength, and its strength level is higher than that of common Q345 steel plate. In the case of bearing large loads, the use of Q690E steel plate can significantly reduce the weight of the structure and improve the efficiency of the structure.
2.Excellent mechanical properties.
In addition to high strength, Q690E steel plate also has good plasticity and toughness. In the case of bearing impact loads, Q690E steel plate can absorb large energy and reduce the impact of impact on the structure. In addition, the steel plate also has good low-temperature toughness, which is able to maintain stable performance at lower temperatures.
3.Good welding performance.
Q690E steel plate adopts microalloying technology, which has a low carbon equivalent and is easy to weld. The steel plate has good deposition metal diffusion hydrogen content and crack resistance, which can meet the requirements of various welding processes. In addition, Q690E steel plate also has good corrosion resistance and can adapt to use in harsh environments.
Sixth, the application range of Q690E steel plate.
1.Bridge engineering.
Bridge engineering has very high requirements for structural materials, which need to have high strength, good plasticity and toughness, and good welding performance. As a high-strength structural steel plate, Q690E steel plate is widely used in bridge engineering. In bridge construction, Q690E steel plate can be used to manufacture key parts such as main beams, piers, and bridge decks to improve the bearing capacity and service life of bridges.
2.Ship Engineering.
Ship engineering has high requirements for the corrosion resistance and welding performance of materials. Q690E steel plate has good corrosion resistance and excellent welding performance, and is widely used in marine engineering. In ship construction, Q690E steel plate can be used to make hulls, decks, cabins and other parts to improve the sailing speed and carrying capacity of ships.
3.Petrochemical.
The petrochemical industry has very strict requirements for materials, which need to have high strength, good corrosion resistance and fatigue resistance. As a high-strength structural steel plate, Q690E steel plate is widely used in the petrochemical industry. In petrochemical plants, Q690E steel plates can be used to manufacture storage tanks, pipelines, reactors and other equipment to improve the bearing capacity and safety of equipment.
4.Architectural field.
The construction sector also has high requirements for structural materials, which require high strength, good plasticity and toughness, and good durability. As a high-strength structural steel plate, Q690E steel plate is widely used in the construction field. In building structures, Q690E steel plates can be used to make beams, columns, slabs and other parts to improve the bearing capacity and service life of buildings.
In a word, Q690E steel plate, as a high-strength structural steel plate, has excellent mechanical properties and good welding properties, and is widely used in bridges, ships, petrochemical industry, construction and other fields. When selecting and using Q690E steel plates, they should be selected and used according to specific engineering requirements and actual conditions to ensure the safety and stability of the structure.