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

N/A GH 120

Formulation

N/A GH Steel Grit

Material

N/A Steel

Mesh Size

N/A 0.0029 to 0.0049 in0.075 to 0.125 mm

Screen Number

N/A 120 to 200

Shape When New

N/A Angular

Shape

N/A Angular

Sieve analysis

N/A According to standard SAE J 444

Chemical analysis

N/A According to standard SAE J827 shot / J1993 grit

Micro Hardness

N/A Minimum 60 HRC

Victors

N/A > 697 HV

Standard deviation

N/A ±3Rc or ± 80 HV

Microstructure

N/A 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

N/A > 7.3 g/cm