These are basically as rolled hard steel strip. To achieve a desired hardness, an annealed material of suitable thickness is taken and rolled down to the required thickness, to achieve that required hardness. After rolling, the material is pinch passed and final annealing is not required. To choose the correct thickness (for reduction to the desired thickness) is a matter of expertise.
Grades: This strip is available in low, medium & high carbon grades.
Applications: It is suitable for components where formability is limited. It saves the extra annealing cost. The strip is directly punched & formed and if required sent for heat treatment.
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