Material:65Mnor 60si2Mn Process:Forged Heat Treatment:Normalised-hardend & Tempered Metallurgy:Tempered Martensite HRC:40 ... plowing, ridge knife, knife stubble, reclamation knife, knife tillers, disc harrow, disc plows piece, spring-tooth, etc., and to map non-standard ... negotiate! Cultivator rotary tiller blade, tractor parts, s-tine, spring, disc harrow, mower blade, break shovel, cutter, plow point