Main Standards for Bearing Steel Pipe

1. ASTM A 295: wearable high-carbon bearing steel tube
2. ASTM A 534: wearable and cementite bearing seamless steel tube
3. JIS G 4805: high-carbon chromium bearing seamless steel tube
4. DIN 17230: ball bearing steel pipe
5. NF A 35-565: steel product, quality of bearing steel
6. Steel Grades of Bearing Steel TubeGCr15 (52100, SUJ2, SUJ3, 100Cr6, SKF3, SKF3S), 20CrNiMo (8620H, 4118H).

Introduction Bearing steel pipe is a sort of hot-rolled or cold-rolled (cold-drawn) seamless steel tube. Salvaging used for producing general antifriction bearing ferrule. The side diameter is 25 mm to 180 mm along with the thickness is between3.5 to twenty mm. we mainly provide general precision and high precision bearing steel pipes.

It withstands great pressure and friction force, so bearing steel pipe own high and uniform hardness and abrasive resistance and elastic max. There are strict requirements for bearing pipe, particularly the uniformity of chemical composition, non-metallic inclusion content and distribution, distribution of carbides and other requirements.
Applications of Bearing Steel Tube Bearing steel pipe can supply for producing kinds of bearing ferules, rollers and steel balls applied in combustion engine, electric motor car, automobile, tractor, lathe, rolling machine, drilling machine, mining machinery, general machinery, as well as high-speed rotated mechanical transmission keeping.
Advantages of Bearing Steel Tube

• JST bearing steel pipe adopts foreign advanced bearing tube annealing technology to control atmosphere protection, temperature and cooling swiftness. Vacuum seal and nitrogen protection will always make our bearing steel tubes can end oxidized and deform an annealing. Similar to control the temperature conveniently and widely. The whole process is under video monitoring.

• Our bearing steel pipes have excellent high performance and good cutting performance after ball annealing. After quenching and tempering, they acquire high and uniform hardness, high wear resistance and contact fatigue strength, and high thermal processing performance.