Nippon Steel Stainless Steel Corporation

Kohei Maejima

Jun Maki

Koichi Nose

Yoshitaka Nishiyama

Hideya Kaminaka

Junko Imamura

Yuya Takashima

Provided are a stainless steel sheet with good corrosion resistance, low contact resistance and good press workability without the use of expensive materials such as gold or rare metals, and a method of manufacture the same. A method of manufacturing a stainless steel sheet includes: preparing a slab having a chemical composition including, in mass %: 20 to 26% Cr, up to 0.1% N, up to 2.0% Si, etc. (step S); performing hot rolling and cold rolling on the slab to produce a rolled steel sheet with a thickness of 50 to 200 &#x3bc;m (step S); an annealing step in which the rolled steel sheet is annealed and cooled in a gas atmosphere containing nitrogen (step S); and pickling the rolled steel sheet after the annealing step with a solution containing a non-oxidizing acid (step S). The stainless steel sheet has an N content of 0.6 to 2.0% by mass.

Stainless steel sheet and method of manufacturing the same, separator for solid polymer fuel cell, solid polymer fuel cell, and solid polymer fuel cell battery

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Tokyo, Japan

Kohei Maejima