Angular steel grit

G - A cast steel angular grit produced by crushing of specially heat treated oversize shot pellets. It is utilised for blast cleaning or surface preparation.

GP - Angular when new, this grit rapidlyround off in use and is particulary suited to descaling applications

GL - Although harder than GP steel grit, GL also loses its sharp edges durnig shotblasting an is particulary suited to descaling and surface preparation applications

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

Name Chemical analysis Brand Hardness

Steel grit

C    0,75 - 1,20 %

Mn  0,60 - 1,10 %

Si   0,60 - 1,10 %

P    max 0,04 %

S    max 0,04 %

GP average of 10 measurments
450 - 560 HV 1
standard deviation
max 40HV 1
GL average of 10 measurments
600 - 700 HV 1
standard deviation
max 45HV 1
GH average of 10 measurments
800 - 950 HV 1
standard deviation
max 60HV 1

 

 

Table legend:
Sorting according to SAE J444

Value in table represent cumulus part of material restraint above checking screen representation in percentage.

X - all pass

Screen size - rated size of checking screen in mm.