1858-1940 British metallurgist who developed manganese steel. Manganese steel is extremely hard and resistant to wear, properties that make it an excellent material from which to make railroad tracks and machinery for breaking apart rock. Earlier forms...

Ferromanganese, a ferroalloy with high content of manganese, is made by heating a mixture of the oxides MnO2 and Fe2O3, with carbon in a furnace. They undergo a thermal decomposition reaction. It is used as a deoxidizer for steel. A North American...