Title:
水素用鋼構造物ならびに水素用蓄圧器および水素用ラインパイプの製造方法
Document Type and Number:
Japanese Patent JP5713152
Kind Code:
B2
Abstract:
Provided is a steel structure for hydrogen gas such as a hydrogen storage tank or a hydrogen line pipe which achieves a lower fatigue crack propagation rate in a high-pressure hydrogen atmosphere than steels used in the related art and has high hydrogen embrittlement resistance. The steel structure for hydrogen gas, which has high hydrogen embrittlement resistance in high-pressure hydrogen gas, has a steel microstructure including any one of 10% to 95% of bainite on an area-ratio basis, 10% to 95% of martensite on an area-ratio basis, and 10% to 95% of pearlite on an area-ratio basis, with the balance being substantially ferrite.
Inventors:
Nagahide Akihide
High Shu Shu
High Shu Shu
Application Number:
JP2014536454A
Publication Date:
May 07, 2015
Filing Date:
March 28, 2014
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
C22C38/00; C21D8/02; C21D8/10; C21D9/00; C22C38/06; C22C38/58
Domestic Patent References:
| JP2010018863A | ||||
| JP2010037652A | ||||
| JP2010222699A | ||||
| JP2010037655A | ||||
| JP2012107332A | ||||
| JP2012107333A |
Attorney, Agent or Firm:
Shigeru Inoue
Kazuhiro Mori
Kazuhiro Mori