发明授权
- 专利标题： Structural austenitic stainless steel with superior proof stress and toughness at cryogenic temperatures
- 专利标题（中）： 结构奥氏体不锈钢在低温下具有优异的应力和韧性
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申请号： US765927申请日： 1985-08-15
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公开(公告)号： US4675156A公开(公告)日： 1987-06-23
- 发明人: Setsu Sakamoto , Yasuhiro Nakagawa , Isamu Yamauchi , Takashi Zaizen , Katsumi Suzuki , Susumu Shimamoto , Hideo Nakajima
- 申请人： Setsu Sakamoto , Yasuhiro Nakagawa , Isamu Yamauchi , Takashi Zaizen , Katsumi Suzuki , Susumu Shimamoto , Hideo Nakajima
- 申请人地址： JPX Tokyo JPX Tokyo
- 专利权人： Nippon Steel Corporation,Japan Atomic Energy Research Institute
- 当前专利权人： Nippon Steel Corporation,Japan Atomic Energy Research Institute
- 当前专利权人地址： JPX Tokyo JPX Tokyo
- 优先权： JPX59-172684 19840820
- 主分类号： C22C38/00
- IPC分类号： C22C38/00 ; C22C38/58
摘要：
Disclosed is a structural austenitic stainless steel with superior proof stress and toughness at cryogenic temperatures. The steel has a composition essentially consisting of, by weight, not greater than 0.05% of carbon, 0.20 to 0.70% of nitrogen, not greater than 1.0% of silicon, not greater than 25% of manganese, 13 to 35% of chromium, 5 to 25% of nickel and the balance substantially iron. The chromium content and manganese content is selected to meet the condition of (Cr+0.9 Mn).gtoreq.20%. The index of cleanliness showing the amount of nonmetallic inclusions is not greater than 0.1%.
公开/授权文献
- US5740777A In-cylinder injection internal combustion engine 公开/授权日：1998-04-21
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