Spiegel

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Spiegel iron \Spie"gel i`ron\ [G. spiegel mirror + E. iron.]
     (Metal.)
     A fusible white cast iron containing a large amount of carbon
     (from three and a half to six per cent) and some manganese.
     When the manganese reaches twenty-five per cent and upwards
     it has a granular structure, and constitutes the alloy ferro


     manganese, largely used in the manufacture of Bessemer steel.
     Called also {specular pig iron}, {spiegel}, and
     {spiegeleisen}.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  spiegel
       n : pig iron containing manganese; used as a deoxidizing agent
           and to raise the manganese content in making steel [syn:
           {spiegeleisen}, {spiegel iron}]