In accordance with standards of GB/T18838.3－2008 Steel Shot and Steel Grit,SFSA20-66Cast Steel Abrasive, SAE J827 Cast Steel Shot, SAE J1993High Carbon Steel Grit, YB/T5149-1993 Cast Steel Shot, YB/T5150-1993Cast Steel Grit,ISO11124-3High Carbon Cast Steel Shot and Grit.

The Major Technological Index:

Products                Steel Shot

Chemical Composition   C     0.70～1.20%

                   Mn  0.35～1.20%

                   Si    0.40～1.20%

                   S     ≤0.05%

                   P     ≤0.05%

Microhardness          Normal:40～50HRC (377～509HV)

Special:52～56HRC (543～620HV)

Special:56～60HRC (620～713HV)

Hardness Deviation      Max Deviation ±3.0HRC

Microstructure        Tempered Martensite or Sorbite

Density               7.2g/cm3