Cast steel grit is used for blast cleaning of shot blasting machine, steel pre-treatment, steel structure.
Application
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Blast cleaning
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Used for blast cleaning of casting, die-casting, forging, sand removal of casting, steel plate, H type steel, steel structure.
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Rust removal
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Rust removal of casting, forging, steel plate, H type steel, steel structure, descaling of forging
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Shot blasting
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Shot blasting of profile steel, ship board, steel board, steel material.
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Shot blasting
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Shot blasting of steel board, profile steel, steel structure.
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Pre-treatment
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Pre-treatment of surface, steel board, profile steel, steel structure, before-painting.
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In accordance with standards of SFSA20-66 Cast 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 Shot
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Index
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Cast steel grit
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Chemical Compostions
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C
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0.70~1.20%
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Mn
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0.60~1.20%
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Si
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0.40~1.20%
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S
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0.05% max
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P
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0.05% max
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Average hardness
(500g loading)
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GP42~50HRC (399~509HV)
GL56~60HRC (620~713HV)
GH63~66HRC (795~889HV)
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Hardness deviation
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Max deviation±3.0HRC,±40HV
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Metallography structure
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Even tempered martensite and dispersed carbon
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Min density
(Alcohol replace testing)
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7.4g/cm3
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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.
Cast steel grit distribution
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mesh
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mm
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Cast steel grit Size
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|||||||||
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2.5
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2.0
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1.7
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1.4
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1.2
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1.0
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0.7
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0.4
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0.3
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0.2
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7
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2.80
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all pass
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8
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2.36
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all pass
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10
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2.00
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80%min
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all pass
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|
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|
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12
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1.70
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90%min
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80% min
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all pass
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|
|
|
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14
|
1.40
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90% min
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80%min
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all pass
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|
|
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16
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1.18
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|
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90%min
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75% min
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all pass
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18
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1.00
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85% min
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75% min
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all pass
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|
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20
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0.850
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|
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25
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0.710
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85% min
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70% min
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all pass
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30
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0.600
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|
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35
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0.500
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80% min
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40
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0.425
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70% min
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all pass
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45
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0.355
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50
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0.300
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80% min
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65%min
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all pass
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80
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0.180
|
|
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75%min
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65% min
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120
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0.125
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75% min
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60% min
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200
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0.075
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70% min
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325
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0.045
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SAE
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G-10
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G-12
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G-14
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G-16
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G-18
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G-25
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G-40
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G-50
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G-80
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G-120
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