In accordance with standards of SFSA20-66Cast Steel Abrasive, SAE J827Cast Steel Shot, SAE J1993High Carbon Steel Grit, YB/T5149-1993Cast Steel Shot, YB/T5150-1993Cast Steel Grit, ISO11124-3High Carbon Cast Steel Shot and Grit.

Main Tech Specifications of Cast Steel grit:

1, Chemical Compositions:

C: 0.70-1.20% Mn: 0.60-1.20% Si: 0.40-1.20%

S less than 0.05% P less than 0.05%

2, Average hardness ( 500g loading )

GP: 42-50HRC (399-509HV)

GL : 56-60HRC (620-713HV)

GH: 63-66HRC (795-889HV)

3, Hardness deviation: Max deviation 3.0HRC (40HV)

4, Metallography structure: Even tempered martensite and dispersed carbon

5, Min density（Alcohol replace testing) : 7.4g/cm3

6, High strength, long lasting Ervin life: Cast steel grit: 2200 cycles

GP：Angular when new, this grit rapidly rounds off in use and its particularly suited descaling applications.

GL：Although harder then GP steel grit, also loses its sharp edges during shot basting and is particularly suited to descaling and surface preparation applications.

GH：Having maximum hardness, GH always remains angular in its operating mix. These abrasive are particularly effective in surface treatment processes and produce a uniform, etched finish, GH angular grit should only be used in wheel machines where working requirements take precedence over cost price considerations (for example with rolling mill cylinders or when a special finish is needed). For use mainly with compressed air equipment.

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