OCR Text |
Show Manganese Boon to Steel The steel Industry takes approximately approxi-mately 93 per cent of all the manganese man-ganese consumed In this country. The percentage of the metal which goes Into the steel varies from around 1 per cent to as high as 12 per cent In steels In which particular particu-lar hardness Is desired. Manganese Manga-nese has long been used In removing oxygen from molten steel, but It is only of late years that Its value as a hardening agent has been realized. real-ized. Washington Star. |