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公开(公告)号：US3940267A
公开(公告)日：1976-02-24
申请号：US553945
申请日：1975-02-28
摘要： An austenitic heat resisting steel exhibiting excellent strength for a long period of time services at an elevated temperature, coexistant-adding 0.02 to 1.0% Nb and 0.02 to 1.9% Zr or 0.02 to 1.0% Nb, 0.02 to 1.0% Zr and 0.02 to 1.0% Ti in addition to usual composition of a stainless steel, simultaneously adjusting the atomic ratio of said(Nb+Zr) or (Nb+Zr+Ti) to C within the range of 0.05 to 1.0, preferably 0.2 to 0.5.
摘要翻译： 在高温下长时间地显示优异的强度的奥氏体耐热钢，共存 - 添加0.02〜1.0％的Nb和0.02〜1.9％的Zr或0.02〜1.0％的Nb，0.02〜1.0％的Zr和0.02〜1.0 ％Ti，同时将所述（Nb + Zr）或（Nb + Zr + Ti）的原子比调整为0.05〜1.0，优选为0.2〜0.5的范围内的不锈钢的常规组成。
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公开(公告)号：US3969161A
公开(公告)日：1976-07-13
申请号：US441225
申请日：1974-02-11
摘要： Cr-Ni system austenitic heat-resisting steel exhibiting higher heat resistance than that of well-known austenitic stainless steels by means of which an atomic ratio of C being 0.05 to 0.30% to Ti being 0.01 to 0.8% and/or Nb (Ta) being 0.01 to 1.6% is within the range of 1.3 to 7, preferably 3 to 6 and the grain size is within the range of ASTM No. 3 to 8.
摘要翻译： 与公知的奥氏体不锈钢相比，显示出比Ti为0.05〜0.30％的原子比为0.01〜0.8％和/或Nb（Ta）的Cr-Ni系奥氏体耐热钢， 为0.01〜1.6％，在1.3〜7的范围内，优选为3〜6，粒径为3〜8的范围。
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公开(公告)号：US3957545A
公开(公告)日：1976-05-18
申请号：US328694
申请日：1973-02-01
申请人： Tohru Mimino , Kazuhisa Kinoshita , Takayuki Shinoda , Syuji Oki , Akira Nagao
发明人： Tohru Mimino , Kazuhisa Kinoshita , Takayuki Shinoda , Syuji Oki , Akira Nagao
CPC分类号： C22C38/48
摘要： Creep rupture strength of austenitic heat resisting steel containing chromium and nickel is improved by adding to the steel small amounts of niobium, a niobium-tantalum or a niobium-tantalum-titanium mixture, and maintaining a Nb/C ratio of less than 3.5.
摘要翻译： 通过向少量的铌，铌钽或铌 - 钽 - 钛混合物中加入少量的Nb / C比，使含有铬和镍的奥氏体耐热钢的蠕变断裂强度提高。
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