PROCESS FOR PRODUCING CHROMIUM-CONTAINING STAINLESS STEEL STRIP WITH EXCELLENT TOUGHNESS.
    2.
    发明公开
    PROCESS FOR PRODUCING CHROMIUM-CONTAINING STAINLESS STEEL STRIP WITH EXCELLENT TOUGHNESS. 失效
    用于生产含铬不锈钢条带,高韧性。

    公开(公告)号:EP0638653A4

    公开(公告)日:1996-10-09

    申请号:EP94905217

    申请日:1994-01-27

    申请人: NIPPON STEEL CORP

    CPC分类号: C21D8/0205 C21D6/002

    摘要: 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.%).

    HOT ROLLED Cr-Ni STAINLESS STEEL PLATE OF LOW ANISOTROPY AND PROCESS FOR PRODUCING THE SAME
    3.
    发明公开
    HOT ROLLED Cr-Ni STAINLESS STEEL PLATE OF LOW ANISOTROPY AND PROCESS FOR PRODUCING THE SAME 失效
    WARMGALALZTE ROSTFREIE CR-Ni-STAHLPLATTE MIT NIEDRIGER ANISOTROPIE UND HERSTELLUNGSVERFAHREN

    公开(公告)号:EP0816519A4

    公开(公告)日:1998-10-21

    申请号:EP97900426

    申请日:1997-01-16

    申请人: NIPPON STEEL CORP

    摘要: A hot rolled Cr-Ni stainless steel plate of a low anisotropy having an aggregate structure in which the (100, 110, 111, 311 and 211) plane strengths in a reverse pole figure measured at the portion of 1/4 of a plate thickness is 0.5-1.5, which is manufactured by continuously casting a molten Cr-Ni stainless steel to a thin strip of 1.5-6 mm in thickness by a continuous casting machine in which wall surfaces of a casting mold are moved synchronously with the cast piece, carrying out a hot rolling, in which the hot-rolling temperature and the draft are set to 950 DEG -1150 DEG C and 25-35R respectively, within not more than 60 seconds after the cast piece has left the casting mold, and then carrying out a heat treatment for holding the resultant product for 5-60 seconds at a temperature in the range of 950 DEG -1200 DEG C. A method of manufacturing the same is also disclosed.

    摘要翻译: 一种低各向异性的热轧Cr-Ni不锈钢板,其具有聚集结构,其中在板厚的1/4的部分处测量的反极图中的(100,110,111,311和211)面强度 是通过连铸机将熔融的Cr-Ni不锈钢连续铸造成1.5-6mm厚的薄带而制造的,其中铸模的壁表面与铸件同步移动, 在铸件离开铸模之后不超过60秒内进行热轧,其中热轧温度和拉拔分别设定为950℃-1150℃和25-35℃,然后承载 在950-1200℃的温度范围内进行热处理以保持所得产品5-60秒。还公开了其制造方法。