Pipe-shaped integrally molded article and production method for pipe-shaped integrally molded article

A pipe-shaped integrally molded article, formed by molding a polyphenylene sulfide resin composition, and having, at one or more portions thereof, at least one selected from a different-shape section, a bent section and a different-diameter section, wherein

• a total length L (mm) of the pipe-shaped integrally molded article is 1000 or more,
• a ratio (L/D) of the total length L (mm) to an outer diameter D (mm) of the pipe-shaped integrally molded article is 20 or more,
• a melt tension N (mN) at breakage of the polyphenylene sulfide resin composition is 10 or more and 50 or less,
• the polyphenylene sulfide resin composition is compounded with
• (b) 5 to 100 parts by weight of a polyolefin-based resin and
• (c) 10 to 45 parts by weight of an inorganic filler relative to
• (a) 100 parts by weight of a polyphenylene sulfide resin, and
• the (b) polyolefin-based resin is compounded with an olefin-based resin having an epoxy group and an ethylene⋅α-olefin-based copolymer at a ratio by weight of 45:55 to 50:50.