AUSTENITIC STEEL WITH EXCELLENT WEAR RESISTANCE AND DUCTILITY

• Main Authors: NOH, HEE GOON, LEE, SOON GI, CHOI, JONG KYO, CHO, HYUN KWAN
• Format: Patent
• Language: English; Korean
• Published: 08.07.2013
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

PURPOSE: An austenite steel material with the excellent wear resistance and ductility is provided to supply a steel material which prevents the degradation of the steel material which is caused by carbide and to have the excellent wear and corrosion resistance. CONSTITUTION: A manufacturing method of an austenite steel material with the excellent wear resistance and ductility comprises the following steps. A slab, which is composed of, in wt%: Mn: 8-15; C satisfying the relation of 23 < 33.5 C-Mn <= 37%; Cu: 1.6 C-1.4 (%) <= Cu <= 5; and the remainder Fe and other inevitable impurities, is heated from more than 1050°C to less than 1250°C. A steel plate is manufactured by hot-rolling the heated slab from more than 800°C to less than 1050°C. The steel sheet which becomes with the hot rolling hot rolling is decided on to the cooling speed more than 10°C / s to the temperature less than 600°C with accelerated cooling. The hot-rolled steel plate is acceleratedly cooled to 600°C or less at the speed of 10°C/s. [Reference numerals] (AA) Manganese (wt%); (BB) Carbon (wt%)