HyperDic: ni-hard_iron

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

English > *Ni-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