Rolled Steelers
Steel is an essential material in a wide variety of applications, ranging from construction to industrial machinery. Rolled steel is an important form of steel which has been processed into flat or round shapes by either a hot rolling or cold rolling process. In this article, well discuss hot rolled steel, or rolled steel, in further detail.
What Is Hot Rolled Steel?
Hot rolled steel is steel that has been heated to temperatures higher than 1000 F during the rolling process. This high temperature causes the grains of the steel to deform and recrystallize, giving the steel different properties than cold rolled steel. During the hot rolling process, steel is turned into sheets and bars.
Hot rolled steel is known for its distinct blue-gray hue and can be used for various applications. It is commonly used for structural beams and sheet metal. As hot rolled steel is cooled, it becomes more malleable and can be formed into different shapes.
Due to the hot rolling process and high temperature, both the grains and surface of hot rolled steel are significantly rougher than cold rolled steel. This creates a textured surface which is not as strong as cold rolled steel and is more susceptible to denting, warping, and rusting.
Hot Rolled Round and Square Steel
Hot rolled steel is commonly used for round and square steel, according to the standards set by the GB/T702-1986. Hot rolled steel is created by heating and rolling the steel to desired shapes. The steel is then cooled and subjected to further processing. The steel is then cut into desired lengths and shapes, which are then certified and ready for sale.
Round and square steel is popular for uses such as infrastructure, buildings, and construction applications. Round steel sections are more difficult to form during the hot rolling process, and so the cross section of the steel can vary by product.
Hot rolled round steel has a number of advantages, including better weldability than cold-rolled steel, increased strength, and a smoother surface finish. The process of making hot rolled round steel also produces a larger surface area, which increases its capacity for withstanding external forces.
Square steel has its own advantages, such as improved strength and easier machining. As well as this, square steel has a higher moment of inertia, meaning it has a better resistance to bending.
Conclusion
Hot rolled steel is an important form of steel used in a variety of applications. It is created by heating the steel to very high temperatures and rolling it in order to achieve specific shapes. Round and square steel is often used for structural purposes and is popular in the construction industry. Hot rolled steel has a number of advantages, such as increased strength, better weldability, and a smoother surface finish. Cold rolled steel, however, has a greater resistance to denting and warping.
