Abstract: A steel powder is provided. The steel powder has a composition of, in wt. %, C 0.05-2.0, Mn 14.0-30.0, Al 5.0-10.0, Cr 3.0-10.0, Si 0.1-2.0, Ti 0.05-0.5, and, as optionals, Ni 0.0-0.2, N 0.0-1.0, O 0.0-0.50, with a balance of Fe and unavoidable impurities. A method of producing the powder is also provided.

Abstract: The cutter comprises a cylindrical pipe closed at one end by a plate having a plurality of eccentrically spaced holes. The pipe is externally threaded into the internally threaded pipe with a closed end having an eccentrically located hole for mounting over the protruding end of a Johnny bolt which is to be cut off. The externally threaded pipe has an upper end with holes drilled therethrough for receiving a wrench bar, wherewith to forcibly turn the externally threaded pipe within, the internally threaded pipe when the hole therein is mounted over a bolt end which extends through one of the holes in the closed end of the other pipe, so that by turning said pipes relative to each other the protruding bolt end may be broken or cut off.

Abstract: The cutter designed for the cutting of sunken bolts for the purpose of removing said bolts with nuts rusted thereon is comprised of a U-bolt having a head plate slidably mounted on the said U-bolt, a pair of jaw plates slidably mounted on the said U-bolt above said head plate and having opposing cutter jaws extending laterally therefrom and tapered towards short cutting edges for mounting over the outer end of a sunken base hold down bolt, and particularly over the outer end of a Johnny base hold down bolt with a nut that has rusted thereon so that the threaded shank passed threadedly through said head plate may be turned against the inner of said jaw plates to force the cutter edges together and cut off the end of said bolt without harm to said base and particularly said Johnny base, there being a pair of stop nuts threadedly engaging the outer ends of the U-bolt.