Songshun die tool steel GCr15 bearing steel 1.Specification of die tool steel GCr15 bearing steel Round bar Diameter(mm) 20~800 Length (mm) 3000~5800 Plate Thickness(mm) Max:800 Length (mm) 3000~5800 The specification can be customised! 2.Chemical compositon of die tool steel GCr15 bearing steel Cr C Si Mn Mo P S Ni 1.40-1.65 0.95-1.05 0.15-0.35 0.25-0.45