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Title:
高圧水素ガス貯蔵容器用アルミニウム合金
Document Type and Number:
Japanese Patent JP5159196
Kind Code:
B2
Abstract:

To provide an Al alloy for lining a storage container of a high-pressure hydrogen gas, which does not cause the deterioration of a material due to hydrogen embrittlement even when the charging pressure is made higher, also extends the fatigue life in a low cycle, and consequently extends the useful life of the high-pressure container.

The aluminum alloy for the storage container of the high-pressure hydrogen gas includes, Mg and Si in a range satisfying Mg≤1.73Si-0.52%, Mg≤1.5%, Mg≥0.9% and Si≤1.8%, and 0.01 to 0.7% of Fe, and the balance substantially Al. The aluminum alloy may further include 0.1 to 1.5% Cu, or one or more elements selected from 0.05 to 1.2% Mn, 0.01 to 0.4% Cr, 0.01 to 0.3% Zr, 0.01 to 0.5% Sc and 0.01 to 0.3% V.

COPYRIGHT: (C)2009,JPO&INPIT


Inventors:
Koji Ichitani
Katsumi Koyama
Application Number:
JP2007189277A
Publication Date:
March 06, 2013
Filing Date:
July 20, 2007
Export Citation:
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Assignee:
Furukawa Sky Co., Ltd.
NIPPON LIGHT METAL COMPANY,LTD.
Mitsubishi Aluminum Co., Ltd.
KABUSHIKI KAISHA KOBE SEIKO SHO
Sumitomo Light Metal Industry Co., Ltd.
SHOWA DENKO K.K.
International Classes:
C22C21/02; C22C21/06; C22F1/05; F17C1/06; F17C1/14; C22F1/00
Domestic Patent References:
JP5271834A
JP7150282A
JP4160131A
JP2004315913A
JP63161136A
JP2004269989A
Attorney, Agent or Firm:
Sumio Tanai
Takehisa Toyota
Norihiko Ara