公开(公告)号：US4101347A

公开(公告)日：1978-07-18

申请号：US794334

申请日：1977-05-06

申请人： Masakuni Fujikura ,  Tomio Kono ,  Kazuto Terai ,  Naohiro Abe ,  Kiyohito Ishida

发明人： Masakuni Fujikura ,  Tomio Kono ,  Kazuto Terai ,  Naohiro Abe ,  Kiyohito Ishida

IPC分类号： C22C38/42 ,  C22C38/44

CPC分类号： C22C38/42 ,  C22C38/44

摘要： Ferrite-austenite stainless steel castings having an improved erosion-corrosion resistance consist by weight percentage of not more than 0.1% of C, 0.2-3% of Si, not more than 2% of Mn, 2.2-4% of Cu, 3-9% of Ni, 20-30% of Cr, 2-6% of Mo, 0.08-0.25% of N, 0.12-0.3% of Sn, at least one of 0-2% of Nb, 0-1% of Ti, 0-2% of Ta, 0-1% of Zr and 0-1.5% of V and remainder of Fe, and are obtained by solution heat treatment at 1,000.degree.-1,150.degree. C in such a manner that Cr- and Ni-equivalents lie within an area represented by the area ABCD shown in FIG. 1 of the accompanying drawings.

摘要翻译： 具有改善的耐侵蚀腐蚀性的铁素体 - 奥氏体不锈钢铸件的重量百分比不超过C的0.1％，Si：0.2-3％，不超过2％的Mn，2.2-4％的Cu，3- 9％的Ni，20-30％的Cr，2-6％的Mo，0.08-0.25％的N，0.12-0.3％的Sn，0-2％的Nb中的至少一种，0-1％的Ti ，0-2％的Ta，0-1％的Zr和0-1.5％的V以及余量的Fe，并且通过在1000°-1,150℃下固溶热处理得到Cr-和Ni- 等同物位于由图1所示的区域ABCD表示的区域内。 附图1。

公开(公告)号：US4347080A

公开(公告)日：1982-08-31

申请号：US223034

申请日：1981-01-07

申请人： Minoru Yanagida ,  Tomio Kono

发明人： Minoru Yanagida ,  Tomio Kono

IPC分类号： C22C38/54 ,  C22C38/06

CPC分类号： C22C38/54

摘要： In austenitic free-cutting stainless steel containing lead, decrease of hot workability caused by the addition of lead can be dissolved by adding a specific amount of boron. Thus, there is obtained an austenitic free-cutting stainless steel with improved machinability, corrosion resistance and hot workability of which are maintained at the level of conventional austenitic stainless steel.

摘要翻译： 在含有铅的奥氏体自由切削不锈钢中，通过添加特定量的硼可以溶解通过添加铅引起的热加工性的降低。 因此，获得了具有改进的机械加工性，耐腐蚀性和热加工性的奥氏体自由切削不锈钢，其维持在常规奥氏体不锈钢的水平。