发明授权
- 专利标题： Steel for induction quenching and machinery structural parts using the same
- 专利标题（中）： 钢用于感应淬火和机械结构件使用相同
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申请号： US09616362申请日： 2000-07-13
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公开(公告)号： US06203630B1公开(公告)日： 2001-03-20
- 发明人: Yasushi Matsumura , Yutaka Kurebayashi , Sadayuki Nakamura
- 申请人： Yasushi Matsumura , Yutaka Kurebayashi , Sadayuki Nakamura
- 优先权： JP11-198836 19990713
- 主分类号： C22C3814
- IPC分类号： C22C3814
摘要：
A steel product contains, by mass %, C: 0.45 to 0.60%, Si: 0.01 to 0.15%, Mn: 0.20 to 0.60%, S: 0.012% or lower, Al: 0.015 to 0.040%, Ti: 0.005 to 0.050%, B: 0.0005 to 0.0050%, N: 0.010% or lower, O: 0.0010% or lower, and balance being Fe and unavoidable impurities. Limitations are provided to allowable maximum sizes per each sort of contained non-metallic inclusions and the number per unit area thereof. This steel may contains one kind or two kinds or more of Cr: 1.00% or lower, Mo: 0.50% or lower and Ni: 1.50 or lower.