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    OXIDATION AND CORROSION RESISTANT AUSTENITIC STAINLESS STEELINCLUDING MOLYBDENUM
    41.
    发明专利
    OXIDATION AND CORROSION RESISTANT AUSTENITIC STAINLESS STEELINCLUDING MOLYBDENUM 未知

    公开(公告)号：CA2407637A1

    公开(公告)日：2002-02-28

    申请号：CA2407637

    申请日：2001-08-17

    Applicant: ATI PROPERTIES INC

    Inventor： RAKOWSKI JAMES M

    IPC: C22C38/00 ,  C22C38/06 ,  C22C38/44 ,  C22C38/50 ,  C22C30/00

    Abstract: An austenitic stainless steel comprising, by weight, 17 to 23 % chromium, 19 to 23 % nickel, 1 to 6 % molybdenum. The addition of molybdenum to the iron- base alloys of the invention increases their resistance to corrosion. The austenitic stainless steel may consisting essentially of, by weight, 17 to 2 3 % chromium, 19 to 23 % nickel, 1 to 6 % molybdenum, 0 to 0.1 % carbon, 0 to 1.5 % manganese, 0 to 0.05 % phosphorus, 0 to 0.002 % sulfur, 0 to 1.0 % silicon, 0.15 to 0.6 % titanium, 0.15 to 0.6 % aluminum, 0 to 0.75 % copper, iron, and incidental impurities. Austenitic stainless steels according to th e present invention exhibit enhanced resistance corrosion by salt at a broad temperature range up to at least 1500 ~F. Thus, the stainless steel of the present invention would find broad application as, for example, automotive components and, more particularly, as automotive exhaust system components a nd flexible connectors, as well as in other applications in which corrosion resistance is desired.

    OXIDATION AND CORROSION RESISTANT AUSTENITIC STAINLESS STEELINCLUDING MOLYBDENUM
    42.
    发明专利
    OXIDATION AND CORROSION RESISTANT AUSTENITIC STAINLESS STEELINCLUDING MOLYBDENUM 未知

    公开(公告)号：CA2406341A1

    公开(公告)日：2002-02-21

    申请号：CA2406341

    申请日：2001-08-17

    Applicant: ATI PROPERTIES INC

    Inventor： RAKOWSKI JAMES M

    IPC: F01N13/08 ,  C22C38/00 ,  C22C38/04 ,  C22C38/06 ,  C22C38/44 ,  F01N13/16 ,  C22C38/50

    Abstract: An austenitic stainless steel comprising, by weight, 19 to 23 % chromium, 30 to 35 % nickel, 1 to 6 % molybdenum, and less than 0.8 % silicon. The additi on of molybdenum t the iron-base alloys of the invention increases their resistance to corrosion at high temperatures. The austenitic stainless steel may consisting essentially of, by weight, 19 to 23 % chromium, 30 to 35 % nickel, 1 to 6 % molybdenum, 0 to 0.1 % carbon, 0 to 1.5 % manganese, 0 to 0.05 % phosphorus, 0 to 0.02 % sulfur, less than 0.8 % silicon, 0.15 to 0.6 % titanium, 0.15 to 0.6 % aluminum, 0 to 0.75 % copper, iron, and incidental impurities. Austenitic stainless steels according to the present invention exhibit enhanced resistance corrosion by salt at a broad temperature range u p to at least 1500 ~C. Thus, the stainless steel of the present invention woul d find broad application as, for example, automotive components and, more particularly, as automotive exhaust system components and flexible connector s, as well as in other applications in which corrosion resistance is desired.

    LEAN AUSTENITIC STAINLESS STEEL
    44.
    发明专利
    LEAN AUSTENITIC STAINLESS STEEL 未知

    公开(公告)号：SG10201700586QA

    公开(公告)日：2017-02-27

    申请号：SG10201700586Q

    申请日：2008-02-26

    Applicant: ATI PROPERTIES INC

    Inventor： BERGSTROM DAVID S ,  RAKOWSKI JAMES M ,  STINNER CHARLES P ,  DUNN JOHN J ,  GRUBB JOHN F

    Abstract: An austenitic stainless steel having low nickel and molybdenum and exhibiting comparable corrosion resistance and formability properties to higher nickel and molybdenum alloys comprises, in weight %, up to 0.20 C, 2.0-9.0 Mn, up to 2.0 Si, 16.0-23.0 Cr, 1.0-5.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.1-0.35 N, up to 4.0 W, up to 0.01 B, up to 1.0 Co, iron and impurities, the steel having a ferrite number of less than 10 and a MD30 value of less than 20° C.

    ELIMINACION QUIMICA DE IMPERFECCIONES SUPERFICIALES DEL ACERO ELECTRICO DE GRANO ORIENTADO.
    49.
    发明专利
    ELIMINACION QUIMICA DE IMPERFECCIONES SUPERFICIALES DEL ACERO ELECTRICO DE GRANO ORIENTADO. 未知

    公开(公告)号：MX2014008055A

    公开(公告)日：2014-10-06

    申请号：MX2014008055

    申请日：2013-01-03

    Applicant: ATI PROPERTIES INC

    Inventor： RAKOWSKI JAMES M

    IPC: C23F1/28 ,  C21D8/12 ,  C23F1/02 ,  H01F1/147

    Abstract: Un método para reducir la altura de las imperfecciones protuberantes del hierro en un acero eléctrico recubierto de lámina de cristal, que comprende poner en contacto al menos una parte de una superficie de un acero eléctrico recubierto de lámina de cristal con una solución ácida durante un tiempo de contacto suficiente para reducir una altura promedio de las imperfecciones del hierro en el intervalo de 0 por ciento a 150 por ciento del espesor del recubrimiento de lámina de cristal, sin eliminar efectivamente el recubrimiento de lámina de cristal. Luego de tener contacto, se enjuaga con agua el acero eléctrico recubierto de lámina de cristal y se seca.

    Austenitic stainless steel low in nickel containing stabilizing elements
    50.
    发明专利
    Austenitic stainless steel low in nickel containing stabilizing elements 未知

    公开(公告)号：AU2008341063C1

    公开(公告)日：2014-05-22

    申请号：AU2008341063

    申请日：2008-02-20

    Applicant: ATI PROPERTIES INC

    Inventor： BERGSTROM DAVID S ,  GRUBB JOHN F ,  RAKOWSKI JAMES M ,  STINNER CHARLES P ,  DUNN JOHN J

    IPC: C22C38/38 ,  C22C38/58

    Abstract: An austenitic stainless steel composition including relatively low nickel and molybdenum levels, and exhibiting corrosion resistance, resistance to elevated temperature deformation, and formability properties comparable to certain alloys including higher nickel and molybdenum levels. Embodiments of the austenitic stainless steel include, in weight %, up to 0.20 C, 2.0-9.0 Mn, up to 2.0 Si, 16.0-23.0 Cr, 1.0-7.0 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.05-0.35 N, up to 4.0 W, (7.5(%C)) ≤ (Nb + Ti + V +Ta + Zr) ≤ 1.5, up to 0.01 B, up to 1.0 Co, iron and impurities. Additionally, embodiments of the steel may include 0.5 ≤ (Mo + W/2) ≤ 5.0 and/or 1.0 ≤ (Ni + Co) ≤ 8.0.

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