Bearing Steel Cr4Mo4V Shenyuan Special Steel supplies below different sorts of bearing steel. ... φ8.0-φ65SWNr4543-----Z100CD17-----9Cr18Moφ8.0-φ65440C/44004X110CrMo18SUS440CZ100CD17ISO630:217Cr17Mo------------------------------Cr4Mo4V------------------------------ Bearing Steel ...