a special steel used for making blades; said to be stronger and break more cleanly than conventional steels
Found on http://www.hpfc.org.uk/glossary.htm
A precipitation-hardening treatment applied to a special group of high-nickel iron-base alloys (maraging steels) to precipitate one or more intermetallic compounds in matrix of essentially carbon-free martensite. Found on https://steelforge.com/literature/steelog-the-5000-word-metals-glossary/