Analysis of fault layer problem of S690QL plate equivalent

Weathering steel is mainly used for steel structures exposed to the atmosphere for a long time, such as railways, vehicles, bridges, towers, photovoltaics, and high-speed projects. It S690QL plate equivalent is used to manufacture structural parts such as containers, railway vehicles, oil derricks, seaport buildings, oil production platforms, and containers containing hydrogen sulfide corrosive medium in chemical petroleum equipment.

The sensitivity of high temperature tempering brittleness of wear-resistant plates is generally expressed by the difference between the toughness and brittleness transition temperature of the toughened state and the embrittlement state. The more serious the brittleness of high temperature tempering, the higher the proportion of the fracture surface along the grain of the wear-resistant steel plate, S690QL plate equivalent. The effect of the elements in the wear plate on the high temperature temper brittleness is divided into two aspects. One is the impurity elements that cause the high temperature temper brittleness of the wear plate.

Three advantages of semi-endless rolling technology: 1. The limit specification of Q345B steel is expanded from 1.5 mm × 1300 mm to 1.5 mm × 1600 mm. 2. the semi-endless rolling technology can effectively reduce the fluctuations in the temperature, size, and shape control accuracy of the strip head and tail. 3. The different parts of the strip steel S690QL plate equivalent produced by semi-endless rolling have uniform structure and mechanical properties, the yield strength fluctuation is less than 40 MPa, and the tensile strength fluctuation is less than 20 MPa.

If customers have any difficult problems during use of the steel materials, they can contact the company's after-sales service department to feedback the existing problems. The after-sales department will reply as soon as possible to ensure that each customer has a good after-sales experience. Under special circumstances, the after-sales service department will start the problem-solving process, and the engineers in charge of the area will quickly follow up to solve the problem.

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