pig iron

Noun
  1. Crude iron tapped from a blast furnace (synset 115008050)
    is a type of: atomic number 26, fe, iron - a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood
    subtypes:
    • basic iron - pig iron containing a high percentage of phosphorus; used in making steel by a process that removes the phosphorus
    • cinder pig - pig iron containing a substantial proportion of slag
    • mine pig - pig iron made entirely from ore
    • spiegel, spiegel iron, spiegeleisen - pig iron containing manganese; used as a deoxidizing agent and to raise the manganese content in making steel
    substance meronym:
    • cast iron - an alloy of iron containing so much carbon that it is brittle and so cannot be wrought but must be shaped by casting
    • wrought iron - iron having a low carbon content that is tough and malleable and so can be forged and welded

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