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C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
C21D1/18—Hardening; Quenching with or without subsequent tempering
C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
C21D1/20—Isothermal quenching, e.g. bainitic hardening
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AT566169A1969-06-131969-06-13Verfahren zur Wärmebehandlung von hochfestem, niedriglegiertem Stahl für Schweißkonstruktionen
AT311401B
(de)