公开(公告)号：JP2007284799A

公开(公告)日：2007-11-01

申请号：JP2007158880

申请日：2007-06-15

Applicant: Ati Properties Inc ,  エイティーアイ・プロパティーズ・インコーポレーテッド

Inventor： SORACE DOMINIC A ,  GRUBB JOHN F

IPC: C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/42 ,  C22C38/44 ,  C22C38/58 ,  H04L29/08

CPC classification number: C22C38/02 ,  C22C38/42 ,  C22C38/44 ,  C22C38/58 ,  H04L67/02 ,  Y10S707/959 ,  Y10S707/99945

Abstract: PROBLEM TO BE SOLVED: To provide an austenitic stainless steel exerting a corrosion resistance in an environment of concentrated sulfuric acid.
SOLUTION: The austenitic stainless steel is an alloy having a composition comprising, by weight, about 0.025% or less carbon, about 0.5 to about 4.1% manganese, about 5.5 to about 6.2% silicon, about 11 to about 15% chromium, about 9.0 to about 15.5% nickel, about 0.8 to about 1.2% molybdenum, about 0.8 to about 2% copper and the balance essentially being iron and unavoidable impurities. The composition results in a low alloy content in a high-silicon austenitic stainless steel that maintains a corrosion rate that is comparable to and exceeds those of existing alloys when treating concentrated sulfuric acid. Acceptable characteristics are found when hot working is carried out in the range of about 2,100°F (1,148.9°C) to about 2,200°F (1,204.5°C). Annealing in the range of about 1,925°F (1,051.7°C) to about 2,025°F (1,107.2°C) is preferred, and rapid water quenching after annealing is also preferred.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供在浓硫酸环境中具有耐腐蚀性的奥氏体不锈钢。 解决方案：奥氏体不锈钢是一种合金，其组成包括重量约为0.025％或更少的碳，约0.5至4.1％的锰，约5.5至约6.2％的硅，约11至约15％的铬 ，约9.0至约15.5％的镍，约0.8至约1.2％的钼，约0.8至约2％的铜，余量基本上为铁和不可避免的杂质。 该组合物在高硅奥氏体不锈钢中导致低合金含量，其在处理浓硫酸时保持与现有合金相当并超过其的腐蚀速率。 在约2,100°F（1,148.9℃）至约2,200°F（1,204.5℃）的范围内进行热加工时，可以发现可接受的特性。 在约1,925°F（1,051.7℃）至约2,025°F（1,107.2℃）的范围内的退火是优选的，并且退火后的快速水淬还是优选的。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2014040671A

公开(公告)日：2014-03-06

申请号：JP2013216918

申请日：2013-10-18

Applicant: Ati Properties Inc ,  エイティーアイ・プロパティーズ・インコーポレーテッド

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

IPC: C22C38/00 ,  C22C38/58

CPC classification number: C22C38/58 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/22 ,  C22C38/30 ,  C22C38/32 ,  C22C38/34 ,  C22C38/38 ,  C22C38/42 ,  C22C38/44 ,  C22C38/52 ,  C22C38/54

Abstract: PROBLEM TO BE SOLVED: To provide an austenitic stainless steel having lower nickel and molybdenum content and exhibiting comparable corrosion resistance and formability properties to alloys with higher nickel and molybdenum content.SOLUTION: The austenitic stainless steel comprises up to 0.20 wt.% of C, 2.0-9.0 wt.% of Mn, up to 2.0 wt.% of Si, 16.0-23.0 wt.% of Cr, 1.0-3.0 wt.% of Ni, up to 3.0 wt.% of Mo, 0.1-0.35 wt.% of N, up to 4.0 wt.% of W, up to 0.01 wt.% of B, up to 1.0 wt.% of Co, iron and impurities, the steel having a ferrite number of less than 10 and a MDvalue of less than 20°C.

Abstract translation: 要解决的问题：提供具有较低镍和钼含量的奥氏体不锈钢，并且对具有较高镍和钼含量的合金具有相当的耐腐蚀性和成形性能。解决方案：奥氏体不锈钢含有至多0.20重量％的C， 2.0-9.0重量％的Mn，至多2.0重量％的Si，16.0-23.0重量％的Cr，1.0-3.0重量％的Ni，至多3.0重量％的Mo，0.1-0.35重量％ 的N％，至多4.0重量％的W，至多0.01重量％的B，至多1.0重量％的Co，铁和杂质，钢的铁素体数小于10，MD值越少 超过20°C。

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.

公开(公告)号：CA2705265C

公开(公告)日：2016-12-20

申请号：CA2705265

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

IPC: C22C38/42 ,  C22C38/44 ,  C22C38/58

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.

公开(公告)号：BRPI0111076B1

公开(公告)日：2016-06-21

申请号：BR0111076

申请日：2001-08-02

Applicant: ATI PROPERTIES INC

Inventor： FRITZ JAMES D ,  GRUBB JOHN F ,  POLINSKI RONALD E

IPC: C22C38/18 ,  C23F1/00 ,  C22C38/00 ,  C22C38/22 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C23F15/00 ,  C23G1/02 ,  C23G1/08

Abstract: "tratamentos de superfície para melhorar a resistência à corrosão de aços inoxidáveis austeníticos". processo para aumentar a resistência à corrosão de um aço austenítico incluindo a remoção de material de pelo menos uma parte da superfície do aço, de modo que os sítios de início de corrosão sejam eliminados ou sejam reduzidos em número com relação ao número resultante do processamento de maneira convencional. o material pode ser removido da parte por qualquer processo adequado, incluindo, por exemplo, jateamento abrasivo, esmerilhamento e/ou decapagem com ácido sob condições mais agressivas que as usadas no processamento convencional do mesmo aço.

公开(公告)号：BRPI0820024A2

公开(公告)日：2015-05-19

申请号：BRPI0820024

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

IPC: C22C38/02 ,  C22C38/42 ,  C22C38/44 ,  C22C38/52 ,  C22C38/58

公开(公告)号：BRPI0820354A2

公开(公告)日：2015-05-12

申请号：BRPI0820354

申请日：2008-02-26

Applicant: ATI PROPERTIES INC

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

IPC: C22C38/42 ,  C22C38/44 ,  C22C38/58

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.

公开(公告)号：AU2008341063B2

公开(公告)日：2013-07-04

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.

公开(公告)号：CA2465604C

公开(公告)日：2012-07-24

申请号：CA2465604

申请日：2002-11-21

Applicant: ATI PROPERTIES INC

Inventor： GRUBB JOHN F

IPC: C21D9/46 ,  C22C38/22 ,  C21D6/00 ,  C21D6/02 ,  C21D9/00 ,  C22C38/00 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/50 ,  H01M8/00 ,  H01M8/02 ,  H01M8/12

Abstract: A ferritic stainless steel having improved high temperature mechanical properties includes greater than 25 weight percent chromium, 0.75 up to 1.5 weight percent molybdenum, up to 0.05 weight percent carbon, and at least one of niobium, titanium, and tantalum, wherein the sum of the weight percentages of niobium, titanium, and tantalum satisfies the following equation: 0.4