- 专利标题: AUSTENITE STEEL MATERIAL HAVING SUPERB SURFACE CHARACTERISTIC, AND METHOD FOR PRODUCING SAME
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申请号: EP17884959.2申请日: 2017-12-21
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公开(公告)号: EP3561122A1公开(公告)日: 2019-10-30
- 发明人: KIM, Yong-Jin , OH, Hong-Yeol , KANG, Sang-Deok , LEE, Un-Hae , HA, Yu-Mi
- 申请人: POSCO
- 申请人地址: (Goedong-dong) 6261 Donghaean-ro Nam-gu Pohang-si, Gyeongsangbuk-do 37859 KR
- 专利权人: POSCO
- 当前专利权人: POSCO
- 当前专利权人地址: (Goedong-dong) 6261 Donghaean-ro Nam-gu Pohang-si, Gyeongsangbuk-do 37859 KR
- 代理机构: Potter Clarkson
- 优先权: KR20160178238 20161223
- 国际公布: WO2018117678 20180628
- 主分类号: C22C38/38
- IPC分类号: C22C38/38 ; C22C38/20 ; C22C38/02 ; C22C38/06 ; C22C38/00 ; C21D8/02 ; C21D9/46
摘要:
The present invention relates to abrasion-resistant austenite steel material having superb surface characteristic, and a method for producing the abrasion-resistant austenite steel material. Provided are austenite steel material having superb surface characteristic, and a method for producing same, the austenite steel material according to the present invention comprising, in weight %: 0.6-1.3% carbon (C); 14-22% manganese (Mn); 5% or lower (excluding 0%) copper (Cu); 5% or lower (excluding 0%) chromium (Cr); 1.0% or lower (excluding 0%) silicon (Si); 0.5% or lower (excluding 0%) aluminum (Al); 0.1% or lower (including 0%) phosphorous (P); 0.02% or lower (including 0%) sulfur (S); and remainder in iron (Fe) and other unavoidable impurities, and having the microstructure comprising, by surface area %, 5% or lower carbide and the rest in austenite structure, and surface flaw size of 0.3mm or lower.
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