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Fully Annealed Steel Strips

Hard Strips (India) is a leading name in the field of fully annealed steel strips / coils. Hard Strips (India) is one of the leading manufacturers of good quality fully annealed steel strips / coils in India. Full annealing leads to the second most ductile state a metal can assume for metal alloy. It creates an entirely new homogeneous and uniform structure with good dynamic properties. To perform full annealing, the steel strip is heated to its annealing point and is held for sufficient time to allow the steel strip to fully austenitize, to form austenite or austenite-cementite grain structure. Austenitization is the process of heating the steel to a temperature at which it changes its crystal structure from ferrite to austenite. The material formed in the previous step is then allowed to cool slowly so that the equilibrium microstructure is obtained. The material can either be air cooled or furnace cooled. The result is always a more ductile material that has greater stretch ratio (The stretch ratio or extension ratio is defined as the ratio between the final length ℓ and the initial length L of the material line.) and reduction of area properties but a lower yield strength and a lower tensile strength. Genrally steel strip that is to be machined, will be annealed, then it will be further followed by heat treatment to obtain the final desired properties.