100CrMnSi6-4 Bearing Tube

100CrMnSi6-4 Bearing TubeIntroduction: Bearing steel, British grade, equivalent to China's GCr15SiMn

100CrMnSi6-4Features and scope of application:

100CrMnSi6-4 bearing steel is based on GCr15 steel, and the Si and Mn contents are appropriately increased to improve the hardenability and elastic limit, and the wear resistance is better than GCr15. The applicable size range for the manufacture of rolling elements is larger than that of GCr15. 100CrMnSi6-4 is mainly used for the manufacture of bearing ring steel balls with wall thickness >12mm, outer diameter280mm cylindrical and spherical roller diameters 22mm and needle rollers of all sizes .

Chemical composition of 100CrMnSi6-4

C: 0.95~1.05
Si: 0.40~0.65
Mn: 0.90~1.20
S: ≤0.020
P: ≤0.027
Cr: 1.30~1.65
Ni: ≤0.30
Cu: ≤ 0.25

100CrMnSi6-4Mechanical properties:

Tensile strength σb (MPa): 1831
Impact work Akv (J): 23
Hardness: 65HRC

100CrMnSi6-4Heat treatment specifications and metallographic organization:

Heat treatment specification: quenching at 830~840°C, oil cooling; tempering at 160°C for 3h.

Metallographic organization: tempered martensite.