Marco Stainless Steel Grit is a manufactured abrasive used to remove thick coatings, heavy rust, and mill scale. Its angular shape cleans by aggressively cutting away at the surface, leaving a uniform surface profile. Stainless Steel Grit’s high bulk density, low friability, consistent sizing, and low dust levels provide superior production rates. Stainless Steel Grit is most commonly used in abrasive blasting rooms and is frequently used for cleaning castings and forgings.


Blasting with Stainless Steel Grit will not promote ferric contamination or rust on your surface. This makes Stainless Steel Grit an ideal abrasive choice in applications where ferrous contamination is a concern.


Stainless Steel Grit’s high bulk density and high hardness results in more energy being transferred to the work surface than mineral or slag abrasives, easily removing mill scale and molding sand.


The low friability of Stainless Steel Grit allows it to be recycled hundreds of times. Unlike mineral or slag abrasives, Stainless Steel Grit will not completely shatter when it hits a surface, keeping its relative size. Recycling Stainless Steel Grit increases profitability by reducing abrasive consumption, and shipping, clean-up, and disposal costs.

Stainless Steel Grit Screen Analysis


Shape: Angular
Hardness: MG - Rockwell C (HRC) 56 HRC
HG - Rockwell C (HRC) 62 HRC
Bulk Density:  225 lbs./cu. ft.
Specific Gravity: 4.8 g/cc
Free Silica: No Free Silica
Manufactured Abrasive


Bags: 55 lbs


MG30 (G80)- Typical Profile: 0.14 - 0.5 mm
MG40 (G50)- Typical Profile: 0.4 - 0.5 mm
MG50 (G40)- Typical Profile: 0.6 - 1.0 mm
MG60 (G25)- Typical Profile: 0.7 - 1.25 mm
HG30 (G80)- Typical Profile: 0.14 - 0.5 mm
HG40 (G50)- Typical Profile:
0.4 - 0.5 mm
HG50 (G40)- Typical Profile: 0.6 - 1.0 mm
HG60 (G25)- Typical Profile:
0.7 - 1.25 mm

Optional Accessories

Blast Hose

Blastmaster® Abrasive Blasting Hose

Blastmaster® Abrasive Blasting Hose is available in standard lengths of 50, 100 and 400 feet, and custom lengths up to 200 feet.

Blast Nozzles

Abrasive Blasting Nozzles

A wide variety of blast nozzles are available to meet even the most challenging work site requirements.

Blastmaster® Abrasive Metering Valves

Blastmaster® Abrasive Metering Valves

Marco’s wide selection of Blastmaster® Abrasive Metering Valves give you variable and instant abrasive control for great results on every work site.

Couplings and Blast Nozzle Holders

Couplings and Nozzle Holders

Marco offers several types of couplings and blast nozzle holders to meet the needs of a wide variety of applications.


Technical Information


Inhaling dusts from abrasive blasting may result in serious injury, disease, or death.
According to OSHA, only a Type CE NIOSH-certified blasting airline respirator with positive pressure blasting helmet should be used for abrasive blasting.

Product details are based on published information at the time of publication. Product details are subject to change without notice. Contact Marco for more information.