The invention provides a Fe--Cr alloy structure containing Cr of about 6% or more by mass but about 25% or less by mass, having a corrosion-resistant paint film containing metal powder having ionization tendencies greater than iron, with a content of the metal powder of about 20% or more by volume but about 60% or less by volume in a dry paint film, with a dry film thickness of about 5 .mu.m or more but about 100 .mu.m or less; and a manufacturing method thereof; whereby excellent corrosion resistance and excellent adhesion is provided.