National Geographic : 1942 Aug
PUTTING MUSCLE IN STEEL STEEL-the strong man of America-is not by nature a Samson. Muscle must be de veloped by adding ferro-alloys which remove strength-stealing impurities and give extra qualities before the steel is tough enough to play its part in today's fast-moving world. One of the most important of these alloys is ferro manganese. Used as a scavenger in nearly all grades of steel, it removes oxygen and minimizes the harmful effects of sulphur. With the addition of manganese, hot steel can be rolled without cracking. Cleansing is not the only role that manganese plays in the giants' game of steelmaking. In alloying amounts, manganese refines the structure of steel, thus giving it extra strength and ductility. As increasing amounts of manganese are added, exceptional properties are ob tained. For instance, a steel containing 13 per cent manganese withstands the tough torture of jagged rock on steam shovel jaws. We do not make steel of any kind. But we have for over thirty-five years carried on intensive and contin uous research and development with ferro-alloys and alloying metals used in steelmaking. These include manganese, chromium, silicon, vanadium, tungsten, zirconium, columbium, and calcium. Low-carbon ferromanganese, medium-carbon ferro manganese, and silico-manganese-three manganese alloys which owe their present wide use to our efforts -have greatly speeded and simplified the production of many grades of steel, including stainless steel. You are invited to tap our reservoir of information about ferro-alloys and their use in making the quality steels of today. The progress made by Electro Metallurgical Company in the manufacture and use of ferro-alloys and in the development of alloy steels has been greatlyfacilitated by metallurgicalresearch in the laboratoriesof Electro MetallurgicalCompany and Union CarbideCompany; by the advances in electricalfurnace electrodes and techniques of National Carbon Company, Inc.; and by the broad experience in the production, fabrication, and treatment of metals of Haynes Stellite Company and The Linde Air Prod ucts Company. All of these companies are Units of Union Car bide and Carbon Corporation. ELECTRO METALLURGICAL COMPANY Unit of Union Carbide and Carbon Corporation 3TSNiT 30 EAST 42ND STREET NEW YORK, N. Y.