(1) Material:GCr15(DIN100Cr6,JIS SUJ2,AISI E52100,NF 100C6) Grade:G10-G60 Diameter:15.8750mm-60.325mm
(2) Material: GCr15SiMn(JIS SUJ-3) 　　 Grade: G60-G600 　　 Diameter: 63.5000mm-152.4000mm
(3) Hardness: Less than 30mm is HRC60-66;Between 30mm and 50mm is HRC59-64;More than 50mm is HRC 58-64.
(4) Producing standards: GB/T308-2002
(5) Quality certificate: GB/T 308-2002---ISO 3290 etc.
(6) be used in various bearing and ball mill.
(7) Advantage: good quality bearing steel balls, perfect services and fast delivery at competitive price.