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Bearing steel

  Bearing steel is the general name of alloy steel for manufacturing all kinds of rolling bearing rings and rolling elements.The high-carbon chromium bearing steel produced by CITIC Special Steel is widely used in rollers and sleeves of transmission shaft for auto, engineering machinery, internal-combustion engine manufacturing, electrical locomotive, machine tool, tractor, steel rolling equipment, drilling & exploring machinery, etc. Carburized bearing steel is mainly applied in railway locomotives and wind power industry.The independently developed high-grade bearing steel is favoured by the world's six major bearing manufacturers   The main customers cover :Sweden SKF, Japan NSK, KOYO & NTN, America TIMKEN, German SCHAEFFLER (LUK/INA/FAG), Taiwan Dongpei and Shanghai General Bearing, WAFANGDIAN Bearing, LYC Bearing, C & U, Nankou, xiangyang Auto Bearing, Zhejiang Tianma Bearing, Ningbo SAJOO and other enterprises.

Typical steel grades / Executive standards

GB Standard

ASTM Standard

EN Standard

JIS Standard

User standard or mutual protocol

GCr15

GCr15SiMn

G20CrNiMo

G20CrNi2Mo

GCr18Mo

52100

SAE4320

SAE8620

100Cr6

100CrMn6

20NiCrMo2

SUJ2,SUJ3

SNCM420

 

SKF3、SKF3S、SUJ2S1

100CrMnSi6-4、100Cr6

SKF42、SKF48、S53CG

SKF5、SKF6、SKF7

C56E2、SKF255

 

Product specification

Round rolled steel:

Φ10~200

Seamless steel pipe:

Φ51~533×4~130

Ring:

Φ500~6300×80~500(高)

Bright steel:

Φ10~300

Round forged steel:

Φ100~850

Wire rod:

Φ4.5~25

 

Instruction:

(1) Delivery can be provided in the state of hot rolling, annealing, spheroidizing annealing, bright steel and cold-drawn steel, etc.

(2) The steel grades listed in the table are only representative ones for such products. The Group may produce the corresponding steel grades according to relevant international, domestic and industrial standards or develop the related steel grades according to the requirements of the agreement.