In a major indigenous drive of import substitution, a team of SAIL Bokaro Steel Limited (BSL) & RDCIS, Ranchi, with the active support of marketing wing, succeeded in developing a special grade of galvanized sheets for robust and high life storage grain silos. These silos are used for storage of bulk grains for precluding weathering effects and wastages. Hitherto, the vendors of Food Corporation of India (FCI) imported this special steel from other countries. Recently, FCI under the aegis of PPP mode encouraged private participation for constructing automated large silos with capacities greater than 10,000 tonnes. This product shall fill up this niche demand of the country.

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This quantum jump in the quality of Silos owes to the challenge in meeting stringent specifications in terms of Yield strength (minimum 350 MPa) with a 16% elongation factor coupled with sufficient coating of 450 GSM & above. Also, the engineers designed this special steel with a unique chemical composition. During trials, optimizations of parameters were done successfully for increasing the cold reduction, annealing temperature and line speed during the coating process.