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

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 μm (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.