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KR101920973B1 표면 특성이 우수한 오스테나이트계 강재 및 그 제조방법 有权

표면 특성이 우수한 오스테나이트계 강재 및 그 제조방법
摘要：
본발명은표면특성이우수한오스테나이트계내마모강재의제조방법에관한것이다.본발명에의하면, 중량%로, 탄소(C): 1.09~1.3%, 망간(Mn): 14~22%, 구리(Cu): 5%이하(0% 제외), 크롬(Cr): 5%이하(0% 제외), 실리콘(Si): 1.0%이하(0% 제외), 알루미늄(Al): 0.5%이하(0% 제외), 인(P): 0.1%이하(0% 포함), 황(S): 0.02%이하(0% 포함), 나머지철(Fe)과기타불가피한불순물을포함하는강 슬라브를 1000℃이상 1056℃이하에서재가열하는슬라브재가열단계; 가열된슬라브를 850~950℃의마무리압연온도조건으로열간압연하여열연강재를얻는열간압연단계; 및상기열연강재를 5℃/s이상의냉각속도로 600℃이하까지냉각하는냉각단계를포함할수 있다.
摘要（英）：

The present invention relates to a method of manufacturing the wear-resistant steel excellent in the austenitic surface properties.
According to the present invention, by weight%, carbon (C): 1.09 ~ 1.3%, manganese (Mn): 14 ~ 22%, copper (Cu): 5% or less (excluding 0%), chromium (Cr): 5% or less (0% included), silicon (Si): 1.0% or less (excluding 0%), aluminum (Al): 0.5% or less (excluding 0%), the (P): 0.1% or less (including 0%), sulfur (S): 0.02% or less (including 0%), the rest iron (Fe) and other unavoidable slab reheating step of reheating the steel slab containing the impurities at least 1000 ℃ below 1056 ℃; Obtaining a hot-rolled steel material by hot-heated slab with finish rolling temperature of 850 ~ 950 ℃ rolling the hot rolling step; And it may include a cooling step of cooling to less than 600 ℃ the hot-rolled steel material with more than 5 ℃ / s cooling rate.

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