Carbon Steel Grit is a general-purpose manufactured abrasive used to remove thick coatings, heavy rust, and mill scale. It’s angular shape cleans by aggressively cutting away at the surface leaving a uniform surface profile. Carbon Steel Grit’s high bulk density, low friability, consistent sizing, and low dust levels provide superior production rates. Carbon Steel Grit is most commonly used in abrasive blasting rooms and mobile steel grit recycling systems and is frequently used for bridge, wind tower, and ship and railcar manufacturing and maintenance.


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


Carbon Steel Grit’s higher bulk density and high hardness results in more energy being transferred to the work surface than mineral or slag abrasives, easily removing thick coatings, heavy rust, and mill scale. Carbon Steel Grit’s uniform particle size provides consistent coverage and surface finish, increasing production rates.


Carbon Steel Grit’s durability and low friability produce lower dust levels than most mineral or slag abrasives. Low dust levels improve the operator’s visibility of the work surface, increasing production rates. Lower dust levels also reduce cleanup costs on the job site.

Carbon Steel Grit Screen Analysis


Shape: Angular
Hardness: Rockwell C (HRC)
SG Steel Grit: 40–51 HRC
MG Steel Grit: 47–56 HRC
LG Steel Grit: 54–61 HRC
HG Steel Grit: 60+ HRC
Bulk Density: 230–275 lbs./cu. ft.
Specific Gravity: 1.75 g/cc
Free Silica: No Free Silica
Manufactured Abrasive


Recommended nozzle pressure: 100–125 psi
Recommended working distance from surface: 18 inches


SAE J444 (Sizing)
SAE J1993 (Hardness, Microstructure, Density, etc.)


G10 - Typical Profile 5.5+ mils
G12 - Typical Profile 5.0 mils
G14 - Typical Profile 4.5 mils
G16 - Typical Profile 4.0 mils
G18 - Typical Profile 3.5 mils
G25 - Typical Profile 3.0 mils
G40 - Typical Profile 2.5 mils
G50 - Typical Profile 2.0 mils
G80 - Typical Profile 1.5 mils
*SG, MG, LG & HG Hardness available and will change the typical profile


Bulk Bags: 2,000 and 4,000 lbs
Drum: 1500 or 1700 steel drum
Bags: 50lbs

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.