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    ACERO INOXIDABLE AUSTENITICO CON BAJO CONTENIDO DE NIQUEL QUE CONTIENE ELEMENTOS DE ESTABILIZACION.
    11.
    发明专利
    ACERO INOXIDABLE AUSTENITICO CON BAJO CONTENIDO DE NIQUEL QUE CONTIENE ELEMENTOS DE ESTABILIZACION. 未知

    公开(公告)号：MX2010006038A

    公开(公告)日：2010-08-11

    申请号：MX2010006038

    申请日：2008-02-20

    Applicant: ATI PROPERTIES INC

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

    IPC: C22C38/58 ,  C22C38/38

    Abstract: Una composición de acero inoxidable austenítico que incluye niveles relativamente bajos de níquel y molibdeno, y que presenta resistencia a la corrosión, resistencia a la deformación a temperaturas elevadas y propiedades de formabilidad comparables a ciertas aleaciones que incluyen niveles elevados de níquel y molibdeno. Modalidades del acero inoxidable austenítico incluyen, en porcentaje en peso, hasta 0.20% de C, 2.0-9.0% de Mn, hasta 2.0% de Si, 16.0-23.0% de Cr, 1.0-7.0% de Ni, hasta 3.0% de Mo, hasta 3.0% de Cu, 0.05- 0.35% de N, hasta 4.0% de W, (75(%C)) = (Nb+Ti+V+Ta+Zr) = 1.5, hasta 0.01% de B, hasta 1.0% de Co, hierro e impurezas. Además, modalidades del acero pueden incluir 0.5 = (Mo+W/2) 5.0 y/o 1.0 = (Ni+Co) s 8.0.

    14.
    发明专利
    未知

    公开(公告)号：BR0213263A

    公开(公告)日：2004-10-26

    申请号：BR0213263

    申请日：2002-03-20

    Applicant: ATI PROPERTIES INC

    Inventor： BERGSTROM DAVID S ,  DUNN JOHN J ,  GRUBB JOHN F ,  PRATT WILLIAM A

    IPC: C22C38/00 ,  C22C38/42 ,  C22C38/44 ,  C22C38/54 ,  C22C38/58 ,  C21D9/00

    Abstract: A duplex stainless steel including, in weight percent, up to 0.06 percent carbon, 15 up to less than 25 percent chromium, greater than 3 up to 6 percent nickel, up to 3.75 percent manganese, 0.14 up to 0.35 percent nitrogen, up to 2 percent silicon, greater than 1.4 up to less than 2.5 percent molybdenum, up to less than 0.5 percent copper, up to less than 0.2 percent cobalt, up to 0.05 percent phosphorous, up to 0.005 percent sulfur, and 0.001 up to 0.0035 percent boron, with the remainder being iron and incidental impurities is disclosed. The duplex stainless steel may be included in an article of manufacture, such as a strip, bar, plate, sheet, casting, tubing or piping. A method for making such a duplex stainless steel is also disclosed.

    CORROSION RESISTANT LEAN AUSTENITIC STAINLESS STEEL
    15.
    发明专利
    CORROSION RESISTANT LEAN AUSTENITIC STAINLESS STEEL 未知

    公开(公告)号：ZA201004196B

    公开(公告)日：2022-03-30

    申请号：ZA201004196

    申请日：2010-06-11

    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 composition having low nickel and molybdenum and exhibiting high corrosion resistance and good formability. The austenitic stainless steel includes, in weight %, up to 0.20 C, 2.0-6.0 Mn, up to 2.0 Si, 16.0-23.0 Cr, 5.0-7.0 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 austenitic stainless steel has a ferrite number less than 11 and an MD30 value less than −10° C.

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