It is a high-carbon martensitic steel,mainly used for corrosion resistance demanding tools. It is characterized as a high-end steel yet still affordable. That is why 9Cr18Mov steel is highly popular.
9Cr18Mov steel is Chinese stainless steel. High content of chromium and carbon, which is good for corrosion resistance and hardness which is 58 - 60 HRC. The level of hardness varies depending a heat treatment of individual manufacturers.