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发明名称
LEAD-CONTAINING FREE-MACHINING STEEL
摘要
피삭성이 뛰어난 납 쾌삭강을 제공한다. 본 실시 형태에 의한 납 쾌삭강은, 질량%로, C:0.005~0.2%, Mn:0.3~2.0%, P:0.005~0.2%, S:0.01~0.7%, Pb:0.03~0.5%, N:0.004~0.02%, 및, O:0.003~0.03%를 함유하고, 잔부는 Fe 및 불순물로 이루어진다. 또한, 강 중의 0.01~0.5㎛의 원 상당 직경을 갖는 Pb 개재물(40)의 수가 10000개/㎟ 이상이다.
申请公布号
KR101685863(B1)
申请公布日期
2016.12.12
申请号
KR20157018484
申请日期
2014.01.23
申请人
신닛테츠스미킨 카부시키카이샤
发明人
하시무라 마사유키;와타리 고지
分类号
C22C38/60;B21B3/02;B22D27/04;C21D8/00;C22C38/00
主分类号
C22C38/60
代理机构
代理人
主权项
地址
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