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    CORROSION RESISTANT DUPLEX STEEL ALLOY, OBJECTS MADE THEREOF, AND METHOD OF MAKING THE ALLOY
    2.
    发明申请
    CORROSION RESISTANT DUPLEX STEEL ALLOY, OBJECTS MADE THEREOF, AND METHOD OF MAKING THE ALLOY 审中-公开
    耐腐蚀双相钢合金，其制造的物体及其制备方法

    公开(公告)号：WO2015097253A1

    公开(公告)日：2015-07-02

    申请号：PCT/EP2014/079254

    申请日：2014-12-23

    Applicant: SANDVIK INTELLECTUAL PROPERTY AB

    Inventor： LARSSON, Linn ,  GULLBERG, Daniel ,  KIVISÄKK, Ulf ,  ÖSTLUND, Martin ,  SCHEERDER, Alexander Aleida Antonius

    IPC: B22F3/15 ,  C22C33/02 ,  C22C38/40

    CPC classification number: C22C38/44 ,  B22F3/15 ,  C22C33/0285 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/40 ,  C22C38/42

    Abstract: Disclosed is a Hot Isostatic Pressed ferritic-austenitic steel alloy, as well objects thereof. The elementary composition of the alloy comprises, in percentages by weight: C 0 - 0.05; Si 0 - 0.8; Mn 0 - 4.0; Cr more than 29 - 35; Ni 3.0 - 10; Mo 0 - 4.0; N 0.30 - 0.55; Cu 0 - 0.8; W 0 - 3.0; s 0 - 0.03; Ce 0 - 0.2; the balance being Fe and unavoidable impurities. The objects can be particularly useful in making components for a urea production plant that require processing such as machining or drilling. A preferred use is in making, or replacing, liquid distributors as used in a stripper as is typically present in the high-pressure synthesis section of a urea plant.

    Abstract translation: 公开了一种热等静压型铁素体 - 奥氏体钢合金及其目的。 合金的元素组成按重量百分数计：C 0 - 0.05; Si 0〜0.8; Mn 0-4.0; 铬超过29 - 35; Ni 3.0 - 10; Mo 0-4.0; N 0.30 - 0.55; Cu 0-0.8; W 0 - 3.0; s 0 - 0.03; Ce 0 - 0.2; 余量为Fe和不可避免的杂质。 这些物体在制造需要诸如机械加工或钻孔的加工的尿素生产设备的部件方面特别有用。 优选的用途是制造或替代在汽提器中使用的液体分配器，如通常存在于尿素装置的高压合成段中。

    USE OF A DUPLEX STAINLESS STEEL OBJECT
    3.
    发明申请
    USE OF A DUPLEX STAINLESS STEEL OBJECT 审中-公开

    公开(公告)号：WO2018114867A1

    公开(公告)日：2018-06-28

    申请号：PCT/EP2017/083410

    申请日：2017-12-18

    Applicant: SANDVIK INTELLECTUAL PROPERTY AB

    Inventor： KIVISÄKK, Ulf

    IPC: C21D6/00 ,  C21D8/02 ,  C21D8/06 ,  C21D8/10 ,  C21D9/08 ,  C21D9/46 ,  C21D9/52 ,  C21D1/26 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44

    Abstract: The present disclosure relates to the use of a solution-annealed object comprising a duplex stainless steel, having the following composition in weight% (wt %): C less than or equal to 0.03; Si less than or equal to 0.5; Mn less than or equal to 1.0; Ni 5.0 to 7.0; Cr 22.0 to 26.0; Mo 2.5 to 4.5; N 0.1 to 0.2; P less than or equal to 0.03; S less than or equal to 0.03; Cu less than or equal to 0.3; Al less than or equal to 0.10; the balance being Fe and inevitable impurities; wherein the duplex stainless steel fulfills the equation of Cr+50N ≤ 35; and wherein the duplex stainless steel has a ferrite phase content in the range of from 40% to 60 % by volume and an austenite phase content in the range of 40 to 60 % by volume; in sea water applications.

    PLATE OF A PLATE HEAT EXCHANGER, A PLATE HEAT EXCHANGER MADE OF THESE PLATES AND USE OF THIS PLATE HEAT EXCHANGER
    4.
    发明申请
    PLATE OF A PLATE HEAT EXCHANGER, A PLATE HEAT EXCHANGER MADE OF THESE PLATES AND USE OF THIS PLATE HEAT EXCHANGER 审中-公开
    板式换热器板，这些板的板式换热器和该板式换热器的使用

    公开(公告)号：WO2008073047A1

    公开(公告)日：2008-06-19

    申请号：PCT/SE2007/050986

    申请日：2007-12-13

    Applicant: SANDVIK INTELLECTUAL PROPERTY AB ,  KIVISÄKK, Ulf ,  GÖRANSSON, Kenneth

    Inventor： KIVISÄKK, Ulf ,  GÖRANSSON, Kenneth

    IPC: C22C38/44 ,  F28F21/08

    CPC classification number: F28D9/005 ,  C22C38/001 ,  C22C38/04 ,  C22C38/44 ,  F28F19/00 ,  F28F21/082

    Abstract: The present invention relates to a plate of a plate heat exchanger, said plate comprising a material which constitutes a part of said plate with a surface made of this material positioned to be in direct contact with a chloride-containing cooling liquid, such as sea water, in which the material is a duplex stainless steel alloy containing in weight-%: C max 0.06%, Si max 1.5%, Mn 0-3.0%, Cr 23.0-32.0%, Ni 4.9-10.0%, Mo 3.0-8.0%, N 0.15- 0.5%, B 0.-0.010%, S max 0.030%, Co 0-3.5%, W 0-3.0%, Cu 0- 2.0%, Ru 0-0.3%, Al 0-0.2%, Ca 0-0.010% balance Fe and normal occurring impurities, wherein the ferrite content is 35-70 volume-%.

    Abstract translation: 本发明涉及一种板式换热器板，所述板包括构成所述板的一部分的材料，该材料的表面由该材料制成，该表面定位成与含氯化物的冷却液例如海水直接接触 ，其中材料为重量％：C max 0.06％，Si max 1.5％，Mn 0-3.0％，Cr 23.0-32.0％，Ni 4.9-10.0％，Mo 3.0-8.0％的双相不锈钢合金， ，N≤0.15〜0.5％，B≤0.010％，S最大0.030％，Co 0-3.5％，W 0-3.0％，Cu 0-2.0％，Ru 0-0.3％，Al 0-0.2％ 0-0.010％Fe和正常发生的杂质，其中铁素体含量为35-70体积％。

    NEW AUSTENITIC STAINLESS ALLOY
    5.
    发明申请
    NEW AUSTENITIC STAINLESS ALLOY 审中-公开
    新奥氏体不锈钢合金

    公开(公告)号：WO2017067999A1

    公开(公告)日：2017-04-27

    申请号：PCT/EP2016/075117

    申请日：2016-10-19

    Applicant: SANDVIK INTELLECTUAL PROPERTY AB

    Inventor： KIVISÄKK, Ulf ,  ANTONSSON, Karin ,  STENVALL, Peter

    IPC: C22C38/18 ,  C22C38/40 ,  C22C38/44

    CPC classification number: C21D7/13 ,  C21D8/04 ,  C21D2211/001 ,  C22C1/02 ,  C22C38/18 ,  C22C38/40 ,  C22C38/44

    Abstract: The present disclosure relates to an austenitic stainless alloy comprising in weight% (wt%): C less than 0.03; Si less than 1.0; Mn less than or equal to 1.2; Cr 26.0 to 30.0; Ni 29.0 to 37.0; Mo 6.1 to 7.1 or (Mo + W/2) 6.1 to 7.1; N 0.25 to 0.36; P less than or equal to 0.04; S less than or equal to 0.03; Cu less than or equal to 0.4; balance Fe and unavoidable impurities and to the use thereof and to products made thereof. Thus, the austenitic stainless alloy comprises a low content of manganese in combination with a high content of nitrogen. The present disclosure also relates to the use of said austenitic stainless alloy, especially in highly corrosive environments and to products made of thereof.

    Abstract translation: 本发明涉及一种奥氏体不锈钢合金，其包含重量％（wt％）：C小于0.03; Si小于1.0; Mn小于或等于1.2; Cr 26.0至30.0; Ni 29.0至37.0; Mo 6.1至7.1或（Mo + W / 2）6.1至7.1; N 0.25至0.36; P小于或等于0.04; S小于或等于0.03; Cu小于或等于0.4; 平衡Fe和不可避免的杂质及其用途和由其制成的产品。 因此，奥氏体不锈钢合金包含低含量的锰和高含量的氮。 本发明还涉及所述奥氏体不锈钢合金的用途，特别是在高度腐蚀性环境中以及由其制成的产品中的用途。

    NEW AUSTENITIC STAINLESS ALLOY
    8.
    发明公开
    NEW AUSTENITIC STAINLESS ALLOY 审中-公开

    公开(公告)号：EP3365473A1

    公开(公告)日：2018-08-29

    申请号：EP16788652.2

    申请日：2016-10-19

    Applicant: Sandvik Intellectual Property AB

    Inventor： KIVISÄKK, Ulf ,  ANTONSSON, Karin ,  STENVALL, Peter

    IPC: C22C38/18 ,  C22C38/40 ,  C22C38/44

    Abstract: The present disclosure relates to an austenitic stainless alloy comprising in weight % (wt %): C less than 0.03; Si less than 1.0; Mn less than or equal to 1.2; Cr 26.0 to 30.0; Ni 29.0 to 37.0; Mo 6.1 to 7.1 or (Mo+W/2) 6.1 to 7.1; N 0.25 to 0.36; P less than or equal to 0.04; S less than or equal to 0.03; Cu less than or equal to 0.4; balance Fe and unavoidable impurities and to the use thereof and to products made thereof. Thus, the austenitic stainless alloy comprises a low content of manganese in combination with a high content of nitrogen. The present disclosure also relates to the use of said austenitic stainless alloy, especially in highly corrosive environments and to products made of thereof.

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