Cr14Mo4 Ball Bearing Steel Bar

 

Cr14Mo4V is a molybdenum containing high-grade steel, but also the world's most widely used in a high-temperature bearing steel, in addition to a general bearing characteristics, but also has high dimensional stability, high temperature hardness, high temperature contact fatigue performance, Long-term use at temperatures below 315 ℃. Mainly used for aeroengine bearings and other high temperature bearings.

Grade: Cr14Mo4V Standard: YB 688-1976

 

Chemical Composition:

 

CSiMnSPCrNiCuVMo
0.75~0.85 ≤0.35 ≤0.35 ≤0.020 ≤0.0273.75 ~ 4.25 ≤0.20  ≤0.20 0.90 ~ 1.10 4.00 ~ 4.50

 

 

Mechanical Properties:

 

Impact Power Akv (J): 9.8

 Hardness: 65HRC

Heat treatment specifications

Heat treatment specifications: 1110 ± 5 ℃

 

Insulation 15 ~ 20min, quenching; preheating 860 ℃, tempering 530 ℃ 3 times, each 2h.

 

Metallography: tempered martensite.

 

Delivery Status:

 

Hot-rolled or forged steels are delivered hot-forged or annealed. Cold-drawn steel to the state of annealing delivery.



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