Corrosion-resistant bearing steel, also known as stainless steel, is not easy to oxidation in the corrosive medium. Commonly used are austenitic stainless steel (1Cr18Ni9Ti), martensitic stainless steel (9Cr18, 9Cr18Mo, Cr15Mo4), precipitation hardening stainless steel (0Cr17Ni7AL) and nickel or cobalt-based alloys. The most commonly used is 9Cr18 and 9Cr18Mo.

Corrosion-resistant bearing steel is used to manufacture bearings for chemical industry, food industry and other corrosive environment and low temperature work conditions.

9Cr18 and 9Cr18Mo, this type of martensitic stainless steel can get most of the martensite; After heat treatment, with high hardness, high strength, good wear resistance and toughness, mainly used to manufacture bearings worked in seawater, river, acid, organic salt water. Also was used to produce bearings or micro-bearings that required work at -253 ~ 350 ℃ .

1Cr18Ni9Ti and 0Cr17Ni7AL mainly used in the manufacture of corrosion-resistant cage, steel balls and so on. 1Cr18Ni9Ti can also be used to manufacture anti-magnetic bearing rings and rolling parts, and after nitriding treatment can work in high temperature, high vacuum, low load and high-speed conditions.