Title:
STEEL PLATE FOR ADVANCED NUCLEAR POWER UNIT REACTOR CORE SHELL CYLINDER AND MANUFACTURING METHOD FOR STEEL PLATE
Document Type and Number:
WIPO Patent Application WO/2023/212970
Kind Code:
A1
Abstract:
A steel plate for an advanced nuclear power unit reactor core shell cylinder and a manufacturing method for the steel plate. The steel plate comprises the following components in percentage by mass: C: 0.10%-0.14%, Si: 0.20%-0.30%, Mn: 0.30%-0.60%, P≤0.006%, S≤0.002%, Cr: 1.65%-1.95%, Mo: 0.80%-1.20%, Ni: 0.80%-1.20%, Nb: 0.04%-0.08%, V: 0.10%-0.20%, Ti: 0%-0.03%, Alt: 0%-0.02%, Ca: 0.001%-0.004%, N: 0.01%-0.03%, Sn≤0.001%, H≤0.0001%, O≤0.0020%, and the remainder being Fe and inevitable inclusions, and an anti-high-temperature temper embrittlement coefficient J=(Si+Mn)*(P+Sn)*104≤50. The steel plate and the manufacturing method therefor can ensure the comprehensive performance requirements of the steel plate for the reactor core shell cylinder.
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Inventors:
WANG CHU (CN)
WANG YONG (CN)
DUAN JIANGTAO (CN)
AI FANGFANG (CN)
CONG JINGONG (CN)
LI XINLING (CN)
SUN DIANDONG (CN)
BAI YUPU (CN)
FANG ENJUN (CN)
WANG YONG (CN)
DUAN JIANGTAO (CN)
AI FANGFANG (CN)
CONG JINGONG (CN)
LI XINLING (CN)
SUN DIANDONG (CN)
BAI YUPU (CN)
FANG ENJUN (CN)
Application Number:
PCT/CN2022/091894
Publication Date:
November 09, 2023
Filing Date:
May 10, 2022
Export Citation:
Assignee:
ANGANG STEEL CO LTD (CN)
International Classes:
C21D8/02; C22C38/02; C22B9/18; C22C33/04; C22C38/04; C22C38/44; C22C38/46; C22C38/48; C22C38/50
Foreign References:
| CN114908292A | 2022-08-16 | |||
| JP2004359991A | 2004-12-24 | |||
| CN105861941A | 2016-08-17 | |||
| CN105886909A | 2016-08-24 | |||
| CN113186455A | 2021-07-30 | |||
| CN112126862A | 2020-12-25 | |||
| KR20150074952A | 2015-07-02 |
Attorney, Agent or Firm:
DALIAN EAST PATENT AGENT LTD. (CN)
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