发明名称 |
PROCESS FOR PRODUCING CHROMIUM-CONTAINING STAINLESS STEEL STRIP WITH EXCELLENT TOUGHNESS. |
摘要 |
<p>A process for producing a steel strip having an excellent cast metal toughness from a thin cast chromium-containing stainless steel containing at least 0.05 % in total of niobium, titanium and aluminum, which process comprises casting a stainless steel containing 13-25 % of chromium and at least 0.05 % in total of one or more elements of niobium, titanium, aluminum and vanadium and having a gamma p value as will be defined below of 0 % or less into a thin metal with a thickness of 10 mm or less, hot-rolling immediately thereafter the thin metal in a temperature range of 1,150-950 DEG C at a draft of 5 % or above, conducting either slow cooling at a cooling rate of 20 DEG C/s or heat retention for at least 5 seconds in a temperature range of 1,150-950 DEG C, and winding up the resultant strip below 700 DEG C. gamma p(%) = 420C + 470N + 23Ni + 9Cu + 7Mn - 11.5Cr - 11,5Si - 12Mo - 23V - 47Nb - 49Ti - 52Al + 189 (element content in wt.%). <IMAGE></p> |
申请公布号 |
EP0638653(A1) |
申请公布日期 |
1995.02.15 |
申请号 |
EP19940905217 |
申请日期 |
1994.01.27 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
TERAOKA, SHINICHI, NIPPON STEEL CORP. HIKARI WORKS;MIZUNUMA, TAKEHISA, NIPPON STEEL CO. HIKARI WORKS;NAKAZAWA, TAKANORI, N. S. CORP. TECH. DEV. BUREAU;SATOH, YUICHI, N. S. CORP. TECH. DEV. BUREAU |
分类号 |
C21D8/00;C21D6/00;C21D8/02;C21D9/46;C22C38/00;C22C38/50;(IPC1-7):C21D8/02 |
主分类号 |
C21D8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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