| 摘要 |
1,224,824. Steel. NIPPON KOKAN K.K. March 12, 1969 [March 13, 1968], No.13145/69. Heading C7A. An austenitic heat resistant steel comprises: - the balance, apart from impurities, being Fe. In examples the steels are forged and solution treated (e.g. at 1100‹ C. for B containing alloys) prior to creep testing. |
