spiegeleisen

/spee-guhl-ahy-zuhn/US // ˈspi gəlˌaɪ zən //UK // (ˈspiːɡəlˌaɪzən) //

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Definitions

n.名词 noun

1
- : a lustrous, crystalline pig iron containing a large amount of manganese, sometimes 15 percent or more, used in making steel.

These two elements are then restored to the iron by adding spiegeleisen (an alloy of iron, carbon and manganese).
Layers of spiegeleisen, limonite and other iron ores are numerous in the Laos states, in which also antimony occurs.
Spiegeleisen, an iron which contains a natural alloy of from 10 to 12 per cent.
To this is added a certain quantity of 'spiegeleisen,' which is a compound of iron, carbon, and manganese.
A small amount is used for spiegeleisen, and the rest as a flux.