Title:
MICROBIOLOGICALLY ASSISTED CRACKING-RESISTANT LOW-ALLOY STEEL
Document Type and Number:
WIPO Patent Application WO/2024/024236
Kind Code:
A1
Abstract:
Provided is a microbiologically assisted cracking-resistant low-alloy steel that is practical in terms of production. The microbiologically assisted cracking-resistant low-alloy steel comprises C: 0.30% or less, Mn: 0.10-3.00%, P: 0.030% or less, N: 0.0100% or less, Si: 0.02-1.00%, S: 0.0002-0.0100%, Al: 0.003-0.500%, O: 0.0005-0.0050%, and further comprises one or two selected from Cu: 0.02-3.00% and Ag: 0.01-0.50%, with the remainder being a component composition including Fe and unavoidable impurities. The content ratio of Si to S, Si (%)/S (%), is 8-1200, and the content ratio of Al to O, Al (%)/O (%), is at least 3.
Inventors:
SAMUSAWA ITARU (JP)
SHIMAMURA JUNJI (JP)
SHIMAMURA JUNJI (JP)
Application Number:
PCT/JP2023/019060
Publication Date:
February 01, 2024
Filing Date:
May 23, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D8/02; C22C38/00; C22C38/16; C22C38/60
Domestic Patent References:
| WO2019131035A1 | 2019-07-04 | |||
| WO2020203931A1 | 2020-10-08 | |||
| WO2021019909A1 | 2021-02-04 | |||
| WO2019035329A1 | 2019-02-21 |
Foreign References:
| JP2017190522A | 2017-10-19 | |||
| JP2005179699A | 2005-07-07 | |||
| CN103741056A | 2014-04-23 |
Attorney, Agent or Firm:
GINZA MARONIE P.C. (JP)
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