Patent ID: 8182963

Claim:
A bipolar plate comprising: a cathode face defining at least one first flow distribution channel for at least one first reactant; and an anode face defining at least one second flow distribution channel for at least one second reactant, wherein at least one of the cathode face and the anode face comprises a manganese-stabilized austenitic stainless steel consisting of: from 19% to 23% by weight manganese; from 0.5% to 1.5% by weight nickel; from 17% to 20% by weight chromium; from 0.2% to 0.5% by weight nitrogen; up to 0.075% by weight carbon; from 0.5% to 1.0% by weight silicon; up to 0.1% by weight aluminum; from 0% to 0.005% by weight sulfur; and balance iron and incidental impurities.