STEEL GRIT
(Broken Steel Shot)

Steel Grit, also known as Broken Steel Shot, is a high-hardness abrasive produced by crushing spherical cast steel shot into angular particles. Its sharp-edged grain structure provides aggressive cutting action and effective surface preparation. Steel Grit is primarily used for the removal of old protective coatings, rust, scale, and other contaminants. Due to its angular shape, it is particularly suitable for applications where increased surface roughness and strong adhesion of subsequent coatings are required.

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Specification

Steel Grit (High-Carbon Broken Cast Steel Shot)

Steel Grit, in accordance with ISO 11125-1, is produced by crushing high-quality round cast steel shot. The angular grain shape ensures aggressive cutting performance and effective surface profiling in blasting applications.

Hardness Grades (ISO 11125-3)

We offer three standard hardness grades:

GP: 450 – 550 HV ± 40 HV (45 – 52 ± 2 HRC)
GL: 600 – 700 HV ± 45 HV (54 – 59 ± 2 HRC)
GH: 800 – 950 HV ± 60 HV (64 – 68 ± 3 HRC)

Each grade is designed for specific blasting intensity and surface preparation requirements.

Chemical Composition

Chemical composition corresponds to high-carbon round cast steel shot in accordance with ISO 11125-1.

Grain Size Range

Grain size distribution:
G 10 – G 325, in compliance with SAE J444 (AUG 84, revised May 1993).

Main Applications

Sharp-edged steel grit is primarily used for pneumatic abrasive blasting in blasting chambers and cabinets to:

Clean surfaces from contamination and degraded coatings
Roughen surfaces to improve adhesion of protective coatings
Unify the appearance of treated surfaces
Remove burrs and sprues
Remove carbon deposits from heat-treated GL castings

Key Benefits

High cutting efficiency
Controlled hardness grades
Uniform grain distribution
Long service life
Suitable for chamber and cabinet blasting systems