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Operative Standards:
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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.
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The Major Technological Index:
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Products
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Steel Grit
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Chemical Composition
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C
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0.70～1.20%
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Mn
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0.35～1.20%
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Si
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0.40～1.20%
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S
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P
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≤0.05%
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Microhardness
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GP:42～50HRC (399～509HV)
GL:56～60HRC (620～713HV)
GH:63～66HRC (795～889HV)
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Hardness Deviation
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Max Deviation ±3.0HRC
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Microstructure
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Tempered Martensite or Sorbite
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Density
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7.4g/cm3
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Application:
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Blast cleaning of cast steel grit:Used for blast cleaning of casting, die-casting, forging, sand removal of casting, steel plate, H type steel, steel structure.
Rust removal of cast steel grit:Rust removal of casting, forging, steel plate, H type steel, steel structure, descaling of?forging.
Shot blasting of cast steel grit:Shot blasting of profile steel, ship board, steel board, steel material.
Shot blasting of cast steel:Shot blasting of steel board, profile steel, steel structure.
Pre-treatment of cast steel grit:Pre-treatment of surface, steel board, profile steel, steel structure, before-painting.
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Steel Grit Types:
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 shto 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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