Title:
400 MPA-GRADE CORROSION-RESISTANT STEEL BAR AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/151603
Kind Code:
A1
Abstract:
Disclosed in the present invention are a 400 MPa-grade corrosion-resistant steel bar and a production method therefor. The steel bar comprises the following chemical components: chromium: 9.5-10.4%, molybdenum: 1.0-1.2%, manganese: 0.3-0.6%, nickel: 0.01-1%, copper: 0.01-0.5%, carbon ≤ 0.014%, nitrogen ≤ 0.004%, niobium: 0.01-0.05%, silicon: 0.2-0.6%, chromium + molybdenum + 0.5 manganese + 0.35 nickel + 0.25 copper being 11.1-12.2%, carbon + nitrogen + 0.3 silicon + manganese + 1.8 niobium being 0.4-0.8%, the remainder being iron.
Inventors:
MA HAN (CN)
ZHOU YUN (CN)
ZHAO JIAQI (CN)
ZHANG YU (CN)
CHEN HUANDE (CN)
ZHOU YUN (CN)
ZHAO JIAQI (CN)
ZHANG YU (CN)
CHEN HUANDE (CN)
Application Number:
PCT/CN2021/086677
Publication Date:
July 21, 2022
Filing Date:
April 12, 2021
Export Citation:
Assignee:
INSTITUTE OF RES OF IRON & STEEL JIANGSU PROVINCE/SHA STEEL CO LTD (CN)
JIANGSU SHAGANG GROUP CO LTD (CN)
JIANGSU SHAGANG GROUP CO LTD (CN)
International Classes:
C22C38/44; C21D8/08; C22C38/02; C22C38/04; C22C38/06; C22C38/42; C22C38/46; C22C38/48; C22C38/50; C22C38/54
Domestic Patent References:
| WO2020058330A1 | 2020-03-26 |
Foreign References:
| CN112375995A | 2021-02-19 | |||
| CN103789677A | 2014-05-14 | |||
| CN109972035A | 2019-07-05 | |||
| CN103255349A | 2013-08-21 | |||
| CN103898408A | 2014-07-02 | |||
| EP1818421A1 | 2007-08-15 |
Attorney, Agent or Firm:
SUZHOU WISPRO INTELLECTUAL PROPERTY AGENCY (CN)
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