Stainless steel member for a fuel cell

Details Stainless steel member for a fuel cell Stainless steel member for a fuel cell

2007-08-09

2011-12-13

McNeil, Jennifer (Department: 1784)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

C428S472000, C148S597000, C148S542000, C148S592000, C148S605000, C148S578000, C148S237000, C148S225000, C429S053000, C429S054000

Reexamination Certificate

active

08075991

ABSTRACT:
A stainless steel material for a fuel cell, used for a fuel cell or a cartridge for the fuel cell, having a magnetic permeability of 1.000 to 2.500, and forming a layer having a value of chromium atomic %/iron atomic % of not less than 3.0 in the most surface thereof, and/or the layer of thickness of not less than 12 nm calculated as SiO2having an oxygen atomic % of not less than 20%. Even when brought into contact with the content solution exhibiting acidity of the fuel cell, the stainless steel material reliably suppresses the elution of metal ions thereof.

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