the annealing cycle and process of carbon steel strip is very difficult and needs a deep insight of metallurgical engineering.
A particular lot of material, might be having the correct hardness, but still the required degree of bend or right degree of reduction cannot be aechieved. Reason is improper grain structure, hence poor elongation and as a result the desired properties are not aechieved.This problem arises only due to improper annealing which might be due to following reasons:
moisture in nitrogen or hydrogen atmosphere, unequal distribution of heat, improper soaking time, improper selection of temperature,etc.
Thus to attain the best results in carbon steel, the annealing part is very important.
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