For a spiegeleisen not more than 1 gramme of the sample should be taken, and for a ferro-manganese 0.3 gramme. From Wordnik.com. [Scientific American Supplement, No. 401, September 8, 1883] Reference
These two elements are then restored to the iron by adding spiegeleisen (an alloy of iron, carbon and manganese). From Wordnik.com. [Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon] Reference
Manganese itself has a value for steel-making; or, rather, for the making of spiegeleisen and ferro-manganese, which are used in the Bessemer and Siemens processes. From Wordnik.com. [A Text-book of Assaying: For the Use of Those Connected with Mines.] Reference
Manganese ores are used mainly in the manufacture of steel, the alloys spiegeleisen and ferromanganese being added to the molten steel after treatment in the Bessemer converter and open-hearth furnace in order to recarburize and purify the metal. From Wordnik.com. [The Economic Aspect of Geology] Reference
5 per cent.), phosphorus, sulphur, and sometimes manganese (e.g. spiegeleisen) and various other elements are combined. From Wordnik.com. [Scientific American Supplement, No. 344, August 5, 1882] Reference
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