Materials for automobiles, low cost and excellent in salt damage corrosion resistance and oil supply pipe

摘要

It is an object of the present invention to provide an automobile member and an oil supply pipe which are inexpensive and excellent in corrosion resistance against salt damage. C: 0.015%, N: 0.015%, Cr: 10.5 to 18.0%, Si: 0.01 to 0.80%, Mn: 0.01 to 0.80% by mass% 80%, P 0.050%, S: 0.010%, Al: 0.010 to 0.100%, Ti: 0.03 to 0.30% and Nb: It is exposed to a salt damage environment between a member made of ferritic stainless steel containing one kind or two kinds of 03 to 0.30% as a material and a metal part molded from an Al-plated stainless steel plate attached to a member The Al plating adhesion amount of the metallic parts on the surface corresponding to the gap part of the gap structure part is 20 g / m²150 g / m²Or less, and the members other than the gap portion and the surfaces of the metal parts are covered with a cationic electrodeposition coating film having a thickness of 5 to 35 m.