Method for judging microstructure of high-carbon chromium bearing steel

The invention discloses a method for judging a microstructure of high-carbon chromium bearing steel. The invention relates to a method for judging a microstructure of high-carbon chromium bearing steel. The invention aims to solve the problem that an original judgment method is easy to cause misjudgment. The method comprises the following steps: inspecting a sample at 500 times, and after judging that the sample is a martensitic structure, adjusting the total magnification to 1000 times for inspection; if the microstructure of the to-be-detected sample is a martensitic structure under 1000 times, judging that the microstructure of the to-be-detected sample is the martensitic structure; if a suspected bainite structure is found under 1000 times, judging by a high-temperature tempering method and judging by a residual austenite content detection method; and if the hardness difference of corresponding points of the sample is less than or equal to 1HRC and the content of retained austenite is less than 5%, judgin