Terms
Cast steel angular grit is produced by crushing specially heat treated shot pellets. Its behavior characteristics in service are very much dependent upon the hardness selection of GP, GB, GL or GR grit.

Having maximum hardness, GH always remains angular in its operating mix. This steel has a fast, effective, etching action, making it ideal for deep descaling and etched surface requirements. For use mainly with compressed air equipment.
Unit of Measure

Specifications

Designation

GH 80

Formulation

GH Steel Grit

Material

Steel

Mesh Size

0.0049 to 0.007 in0.125 to 0.180 mm

Screen Number

80 to 120

Shape When New

Angular

Shape

Angular

Sieve analysis

According to standard SAE J 444

Chemical analysis

According to standard SAE J827 shot / J1993 grit

Micro Hardness

Minimum 60 HRC

Victors

> 697 HV

Standard deviation

±3Rc or ± 80 HV

Microstructure

Well controlled manufacturing gives die a martensitic structure that blends the iron and carbon atoms in the finest and most ideal way possible. This structure produces a homogeneity or hardness and resistance throughout the shot. Without this structure the shot would not have the resistance necessary for the applications in which it is used.

Minimum Density Measured by Alcohol Displacement

> 7.3 g/cm