Inexpensive automobile component and oil feed pipe having excellent salt corrosion resistance

An oil filler pipe comprising:

• a non-aluminized steel pipe member made of a steel pipe of a material comprising a ferritic stainless steel comprising, in mass %, at most 0.015% of C, at most 0.015% of N, 10.5% to 18.0% of Cr, 0.01% to 0.80% of Si, 0.01% to 0.80% of Mn, at most 0.050% of P, at most 0.010% of S, 0.010% to 0.100% of Al, more than 0.3% to 1.5% of Mo, one or both of at most 0.30% of Ti and at most 0.30% of Nb with a proviso that both of Ti and Nb are not less than 0.03%, and a balance in a form of Fe and inevitable impurities;
• and
• a metal fitting made of an aluminized stainless steel sheet having an Al-plating weight per unit area ranging from 20 g/m2 to 150 g/m2, wherein
• the metal fitting is attached to an outer circumferential surface of the non-aluminized steel pipe member by welding or brazing at a position not in contact with a fuel to define a gap structure, which is to be exposed to a chloride environment, between the non-aluminized member and the metal fitting, and
• the metal fitting and the non-aluminized steel pipe member are coated with a cation electrodeposition coating film having a thickness of 5 μm to 35 μm.

An automotive member comprising:

• a non-aluminized member made of a material comprising a ferritic stainless steel comprising, in mass %, at most 0.015% of C, at most 0.015% of N, 10.5% to 18.0% of Cr, 0.01% to 0.80% of Si, 0.01% to 0.80% of Mn, at most 0.050% of P, at most 0.010% of S, 0.010% to 0.100% of Al, more than 0.3% to 1.5% of Mo, one or both of at most 0.30% of Ti and at most 0.30% of Nb with a proviso that both of Ti and Nb are not less than 0.03%, and a balance in a form of Fe and inevitable impurities;
• and
• a metal fitting made of an aluminized stainless steel sheet, wherein
• the metal fitting is attached to the non-aluminized member to define a gap structure, which is to be exposed to a chloride environment, between the member and the metal fitting,
• the metal fitting has an Al-plating weight per unit area ranging from 20 g/m2 to 150 g/m2 on a surface thereof facing a gap in the gap structure, and
• a surface of the metal fitting and a surface of the non-aluminized member that do not face the gap are coated with a cation electrodeposition coating film having a thickness of 5 μm to 35 μm.

An oil filler pipe comprising:

• a non-aluminized steel pipe member made of a steel pipe of a material comprising a ferritic stainless steel comprising, in mass %, at most 0.015% of C, at most 0.015% of N, 10.5% to 18.0% of Cr, 0.01% to 0.80% of Si, 0.01% to 0.80% of Mn, at most 0.050% of P, at most 0.010% of S, 0.010% to 0.100% of Al, more than 0.3% to 1.5% of Mo, one or both of at most 0.30% of Ti and at most 0.30% of Nb with a proviso that both of Ti and Nb are not less than 0.03%, and a balance in a form of Fe and inevitable impurities;
• and
• a metal fitting made of an aluminized stainless steel sheet, wherein
• the metal fitting is attached to the steel pipe member to define a gap structure, which is to be exposed to a chloride environment, between a position on an outer circumferential surface of the non-aluminized steel pipe member not in contact with a fuel and the metal fitting,
• the metal fitting has an Al-plating weight per unit area ranging from 20 g/m2 to 150 g/m2 on a surface thereof facing a gap in the gap structure, and
• a surface of the metal fitting and a surface of the non-aluminized steel pipe member that do not face the gap are coated with a cation electrodeposition coating film having a thickness of 5 μm to 35 μm.