SUJ2 is a kind of high carbon chromium bearing steel with less alloy content, good performance and wide application. After quenching and tempering, it has high hardness, uniform structure, good wear resistance and high contact fatigue performance.

SUJ2 bearing tempering components

SUJ2 bearing steel use:

For the production of various bearing rings and rolling parts, such as: the production of internal combustion engines, electric locomotives, automobiles, tractors, machine tools, rolling machines, drilling machines, mining machinery, general machinery, as well as high-speed rotating high-load mechanical transmission bearings of steel balls, rollers and rings. In addition to making balls, bearing rings, etc., it is sometimes used to make tools, such as punching dies and measuring tools.

SUJ2 bearing steel characteristics:

Good overall performance, good cutting performance after spheroidizing annealing;

High hardness and uniformity after quenching and tempering, high wear resistance and contact fatigue strength;

Good thermal processing performance, containing more alloying elements;

SUJ2 steel is the most used and produced grade of high-carbon chromium bearing steel, which is widely used in the world;

With high and uniform hardness, good wear resistance;

It is used to make small section tempering parts with large load and large normalizing parts with small stress.