Ni-hard iron

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Noun1.Ni-hard iron - cast iron to which nickel has been added to make it resist abrasion
alloy cast iron, alloy iron - cast iron containing alloying elements (usually nickel or chromium or copper or molybdenum) to increase the strength or facilitate heat treatment
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References in periodicals archive ?
It was discovered as part of research to find a substitute for chromium (Cr) in Ni-hard iron when Cr was in short supply during World War II.
No close clearances, non clogging action, severe solids/abrasive duty capability, minimal solid degradation, low shear, dry running ability, ability to operate on aerated fluids (Snore), horizontal, submersible and vertical cantilever designs available, and materials:- cast iron, 316 stainless steel, and ni-hard iron.