HyperDic English NI- ... Ni-hard iron

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English 1 sense of the expression *Ni-hard iron*:
NOUN	substance	Ni-hard iron, Ni-hard	cast iron to which nickel has been added to make it resist abrasion

EnglishNi-hard iron: 1 sense noun 1, substance
Meaning	cast iron to which nickel has been added to make it resist abrasion.
Synonym	Ni-hard
Broader	alloy iron, alloy cast iron	cast iron containing alloying elements (usually nickel or chromium or copper or molybdenum) to increase the strength or facilitate heat treatment

HyperDicEnglishNI- ... Ni-hard iron