Invention Application
WO2010074710A3 SUPERAUSTENITIC STAINLESS STEEL AND METHOD OF MAKING AND USE THEREOF
审中-公开
超高性能不锈钢及其制造和使用方法
- Patent Title: SUPERAUSTENITIC STAINLESS STEEL AND METHOD OF MAKING AND USE THEREOF
- Patent Title (中): 超高性能不锈钢及其制造和使用方法
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Application No.: PCT/US2009006424Application Date: 2009-12-08
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Publication No.: WO2010074710A3Publication Date: 2010-09-23
- Inventor: QIAO CONG YUE , TRUDEAU TODD
- Applicant: JONES L E CO , QIAO CONG YUE , TRUDEAU TODD
- Assignee: JONES L E CO,QIAO CONG YUE,TRUDEAU TODD
- Current Assignee: JONES L E CO,QIAO CONG YUE,TRUDEAU TODD
- Priority: US33582508 2008-12-16
- Main IPC: C22C38/00
- IPC: C22C38/00 ; C21D6/00 ; C22C38/40 ; C22C38/58
Abstract:
A superaustenitic stainless steel comprises in weight %, 0.15 to 0.9 % C, 0.2 to 1.3 % Si, 0 to 0.45 % Mn, 32.5 to 37.5 % Cr, 13.5 to 17.5 % Ni, 3.2 to 5.5 % Mo, 0 to 2 % Nb, 0 to 0.5 % B, 0 to 2 % Zr and 30 to 51 % Fe. In a preferred embodiment, the superaustenitic stainless steel consists essentially of, in weight %, 0.5 to 0.9 % C, 0.2 to 0.5 % Si, 0.2 to 0.4 % Mn, 33.0 to 35.0 % Cr, 15.5 to 17.5 % Ni, 4.0 to 4.5 % Mo, 0.7 to 0.9 % Nb, 0.07 to 0.13 % B, 0 to 0.05 % Zr and 40 to 46 % Fe. The superaustenitic stainless steel is useful for valve seat inserts for internal combustion engines such as diesel or natural gas engines.
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