Vanadinizing chain pin shaft and manufacturing method thereof

The invention relates to a vanadinizing chain pin shaft which is resistant to heating, abrasion, oxidation and corrosion and a manufacturing method thereof. The chain pin shaft is a GCr15 pin shaft, and the surface layer of the GCr15 pin shaft is a diffusion metallizing layer. The vanadinizing chain pin shaft has the advantages that GCr15 materials are used for manufacturing the pin shaft, and diffusion metallizing is used for conducting chemical heat treatment on the GCr15 pin shaft, so that the heat resistance, the abrasion resistance, the oxidation resistance and the corrosion resistance of the chain pin shaft are improved by multiple times, and the service life is prolonged by multiple times.