| 摘要 |
<p>1288979 Austenitic steel NIPPON KOKAN KK 2 Dec 1969 [25 Dec 1968] 58894/69 Heading C7A An austenitic heat-resisting steel comprises:- C 0À03-0À3% Cr 15-26% Ni 7-22% Nb present up to 1À5% Ti present up to 1% Mn up to 2% and Si up to 1% the balance, apart from impurities, being Fe; and is so proportioned as to give an atomic ratio Ti/Ti + Nb of 0À15-0À85. The Nb may contain Ta. The relevant subject matter of Specification 1183674 is disclaimed.</p> |
