The selection principle of steel plate for high-rise building is: it can not only make the structure safe and reliable, but also can save steel and reduce the cost. Different use conditions should have different quality requirements. In terms of the mechanical properties of steel such as A572 Gr 42 CS steel carbon plate, yield point, tensile strength, elongation, cold bending property, impact toughness etc. are the indicators to measure the quality of steel. In the design of steel structure, the appropriate steel should be selected according to the characteristics of the structure. The selection of steel is not only an economic problem, but also related to the safety and service life of the structure.
In 2019, the output of pig iron in the world was 1.265 billion tons, with China accounting for 64%; the overseas output accounted for 36% (460 million tons), ranking 86.982 million tons of EU 28 countries, 74.907 million tons of Japan, 74.099 million tons of India, 73.264 million tons of CIS, and A572 Gr 42 CS steel carbon plate 47.521 million tons of South Korea.
After extrusion, the A572 Gr 42 CS steel carbon plate tube shall be removed for sizing. The sizing machine uses a cone-shaped bit to rotate into the steel embryo at high speed to drill holes to form steel pipes. The inner diameter of the steel pipe is determined by the outer diameter length of the drill bit of the sizing machine. After sizing, the steel pipe will enter the cooling tower and be cooled by water spray. After cooling, the steel pipe will be straightened. After straightening, the steel pipe is sent to the metal flaw detector (or hydraulic test) by the conveyor belt for internal flaw detection.
BBN steel can manufacture and supply high strength steel S690QL plates that are of high-quality, very light and are corrosion resistant. As a result of A572 Gr 42 CS steel carbon plate superior quality, they can withstand high temperatures and pressure. EN 10025-6 Grade S690QL plates are known for their strength. Owing to this they can be used in processes and activities such as cranes, buildings, pipes and gates in hydroelectric projects.
