Strip Structure of Special Steels
Special steels are considered to be a type of steel which possess several unique characteristics related to the steels chemical compositions and characteristics, such as high tensile strength, temperature resistance, and magnetic or wear-resistant properties. For the past decade, research and development in the area of special steel has increased and provided a greater understanding of the specific chemical and physical properties associated with such metals. One of the most important considerations in the development and utilization of these steels is the strip structure.
To begin explaining the concept of strip structure, it is helpful to understand how metal is formed and processed. In general, when a metal is subjected to heat it will go through a series of transformations, allowing it to take on different shapes and sizes. Through a combination of rolling and extruding, metal can be formed and shaped into a thin strip, which is then referred to as a strip steel. This can be further categorized into hot-rolled, cold-rolled and annealed steels.
Hot-rolled steels are created by rolling metal at a high temperature, allowing the metal to become more malleable and less brittle. As a result, the steel can be shaped into a thin strip and further molded into various shapes. Cold-rolled steels are also subjected to extreme temperatures, but are then cooled at an accelerated rate. This process increases the strength of the steel and makes it more resistant to plastic deformations. Lastly, annealed steels are heated to hot temperatures and then subsequently cooled at a much slower rate. This causes the steel to become softer and easier to deform.
strip structure determines the qualities of the steel and can be altered depending on the desired outcome or application. For example, certain types of steel require a certain thickness to be able to sufficiently contain high-pressure applications, while other types of steel require a thinner width to be able to increase strength and elasticity. Strip shape can also be varied depending on the desired outcome, with some steels requiring a more rounded finish while others may require a more squared finish.
From a more expansive perspective, strip structure can largely be divided into two classes: close-cutting patterns and large-cutting patterns. Close-cutting patterns are often used for small-scale steel production while large-cutting patterns are used when creating larger pieces. Each method has its advantages and disadvantages, with close-cutting patterns allowing for a higher amount of detail or precision when creating steel and large-cutting patterns offering increased efficiency and output.
The strip structure of special steels plays an important role in determining the qualities of the steel. By choosing the appropriate strip structure, it is possible to ensure that the steel meets the necessary specifications for a particular application or product. With increased understanding of the relationship between the physical and chemical elements of steel and the strip structure, it is possible to create special steels that meet the most demanding requirements.
