steel flat 50x10 S690QL carbon steel hr plates 2020.12.22

SA36 carbon structural steel is a material belonging to the ASME boiler and pressure vessels. The products are produced in steel plates, steel sheets, steel bars, and section steels. The tensile strength is 400-550MPa; the yield point is greater than or equal to 250MPa. SA-36 steel production process: the steel is killed steel. Detailed specifications: steel flat 50x10 S690QL thickness: 8-100mm, width: 1600-4020mm, length: 6000-17500mm. It is commonly used in the construction of bridges and buildings.

The company adheres to the service concept of "you give the order to me and I leave the satisfaction to you". Over the years, our steel flat 50x10 S690QL steel products are supplied in time, with reliable quality and perfect and thoughtful after-sales service. Meanwhile, we have huge steel flat 50x10 S690QL steel stocks all the year round. The company long-term pursues the principle of quality first, customer first, quality for survival, reputation for development, and perfect service to win the users.

Rolling of steel plates is the core of the entire steel rolling production process. The billet is deformed by rolling. The rolling process plays a decisive role in product quality. The quality requirements of rolled steel flat 50x10 S690QL products include the three aspects of product geometry and dimensional accuracy, internal organization and performance, and product finish. Finishing: It is the last process in the steel flat 50x10 S690QL rolling process, and it is also a more complicated process. It plays a final role in guaranteeing the quality of the product.

The microstructure of the quenched and tempered alloy steel, steel flat 50x10 S690QL after conventional heat treatment is tempered sorbite. For parts with wear-resistant surface (such as gears and spindles), induction heating surface quenching and low-temperature tempering are carried out, and the surface structure is tempered martensite. The surface hardness can reach 55HRC-58HRC. After quenching and tempering, the yield strength of quenched and tempered alloy steel is about 800MPa, the impact toughness is 800kJ / m2, and the core hardness is 22HRC - 25HRC. If the cross-section size is large but not quenched, the properties will be significantly reduced.

The after-sales service personnel understand the user's ideas and needs in detail, and stand on the other side's position and interests. Actively communicate with users and help them solve practical problems. This not only solves the service problem, but also improves the customer's trust in the company.