AUSTENITIC STAINLESS STEEL CLAD STEEL PLATE AND PROCESS FOR MANUFACTURING SAME
    7.
    发明公开
    AUSTENITIC STAINLESS STEEL CLAD STEEL PLATE AND PROCESS FOR MANUFACTURING SAME 有权
    WITH其制造奥氏体不锈钢层叠钢板和方法

    公开(公告)号:EP3037567A1

    公开(公告)日:2016-06-29

    申请号:EP14855418.1

    申请日:2014-10-17

    IPC分类号: C22C38/00 C21D8/02 C22C38/58

    摘要: Provided is an austenitic stainless clad steel plate having excellent j oinability between a cladding metal and a base metal in addition to excellent corrosion resistance, especially sensitization resistance characteristics, and a method for producing the austenitic stainless clad steel plate.
    An austenitic stainless clad steel plate has a cladding metal and a base metal formed by being stacked to the cladding metal. The cladding metal includes a composition that contains, by mass%, C: 0.020% or less, Si: 1.00% or less, Mn: 2.00% or less, P: 0.045% or less, S: 0.030% or less, Ni: 12.00 to 15:00%, Cr: 16.00 to 18.00%, and Mo: 2.00 to 3.00%, and the balance is Fe and incidental impurities. The cladding metal includes an austenite grain structure of a partially recrystallized structure or a recrystallized structure. The austenitic stainless clad steel plate has a shear strength of 300 MPa or more.

    摘要翻译: 本发明提供一种包层金属和除了优异的耐蚀性的基底金属之间优良Ĵoinability奥氏体不锈钢复合钢板,尤其是爱抗敏电阻特性,以及用于制造奥氏体不锈钢复合钢板的方法。 一种奥氏体系不锈钢复合钢板具有覆层金属和基体金属由堆叠到包层金属制成。 包层金属包括做了组合物含有,以质量%计,C:0.020%以下,Si:1.00%或以下,Mn:2.00%以下,P:0.045%或以下,S:0.030%或以下,Ni: 12:00至15:00%以下,Cr:16.00至18.00%和Mo:2.00〜3:00%,余量为Fe和不可避免的杂质。 包覆金属包括在部分重结晶结构或再结晶组织的奥氏体晶粒结构。 奥氏体不锈钢复合钢板具有300MPa以上的剪切强度。

    HIGH-STRENGTH THICK STEEL PLATE FOR CONSTRUCTION HAVING EXCELLENT CHARACTERISTICS FOR PREVENTING DIFFUSION OF BRITTLE CRACKS, AND PRODUCTION METHOD THEREFOR
    8.
    发明公开
    HIGH-STRENGTH THICK STEEL PLATE FOR CONSTRUCTION HAVING EXCELLENT CHARACTERISTICS FOR PREVENTING DIFFUSION OF BRITTLE CRACKS, AND PRODUCTION METHOD THEREFOR 有权
    用于防止脆性裂纹扩散的优良特性的高强度厚壁钢板及其制造方法

    公开(公告)号:EP2799584A1

    公开(公告)日:2014-11-05

    申请号:EP12863408.6

    申请日:2012-05-18

    IPC分类号: C22C38/14 C22C38/58 C21D8/02

    摘要: Provided is a high-strength thick steel plate for structural use having a thickness of 50 mm or more and excellent brittle crack arrestability which can be preferably used for ships and a method for manufacturing the steel plate. The steel plate with excellent brittle crack arrestability has a metallographic structure mainly including a bainite phase, a texture in which the integration degree I of the RD//(110) plane in a central portion in the thickness direction is 1.5 or more, and a Charpy fracture appearance transition temperature vTrs in a surface portion and the central portion in the thickness direction of -40°C or lower. Further, the steel plate preferably has the Charpy fracture appearance transition temperature and the integration degree I of the RD//(110) plane in the central portion in the thickness direction satisfying the relational expression (1) below: vTrs 1 / 2 ⁢ t - 12 × I RD / / 110 ⁢ 1 / 2 ⁢ t ≤ - 70 where vTrs (1/2t) : fracture appearance transition temperature (°C) in the central portion in the thickness direction and I RD//(110) [1/2t] : integration degree of the RD//(110) plane in the central portion in the thickness direction.

    摘要翻译: 本发明提供一种结构用高强度厚钢板,其厚度优选为50mm以上,可以优选用于船舶的脆性裂纹阻止性优异的钢板及其制造方法。 脆性裂纹阻止性优异的钢板具有以贝氏体相为主体的金属组织,在厚度方向的中央部的RD //(110)面的积分度I为1.5以上的组织, 在表面部分和在厚度方向上的中心部分的夏比断口转变温度vTrs为-40℃或更低。 此外,钢板优选具有夏比断口转变温度和在厚度方向上的中心部分的RD //(110)面的积分度I满足以下关系式(1):vTrs1 / 2t- (1 / 2t):在厚度方向上的中心部分的断裂外观转变温度(℃)和IRD //(110)[1 / 2t ]:厚度方向中央部分的RD∥(110)面的积分度。