steel grit

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 sorbite

5, Min density(lcohol replace testing): 7.4g/cm3
6, High strength, long lasting Ervin life: Cast steel grit: 2200-2800 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.