... E52100, DIN:1.3505, JIS:SUJ2 High Carbon chromium bearing steel, GB GCr15, AISI:E52100, DIN:1.3505, ... JIS:SUJ2,1,GRADE: Bearing Steel GCr15/E52100/SUJ2/1.35052,Specification: Dia:6. ... used to produce balls abd ring s of bearing. GCr15 is a commom steel which is used ... to produce balls and rings of bearing. The product has characteristics of uniform-chemical composition, ...