Steel Grits

Steel Grit

Steel Grit is a general-purpose manufactured abrasive used to remove thick coatings, heavy rust, and mill scale. It's fully angular shape cleans by aggressively cutting away at the surface leaving a uniform surface profile. 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.

STEEL GRIT complies to SAE specification J1993 and J444 as well as IS 4606 of 1983.

Chemical Composition

-- Carbon: 0.80 - 1.20 %

-- Silicon: > 0.40 %

-- Manganese: 0.35 - 1.20 %

-- Phosphorus: < 0.050%

-- Sulphur: < 0.050%

Density

-- Not less than 7.4 g/cc

Hardness

SAE Standard=

- GH--> 60 HRc

- GL - 50 - 60 HRc

- GP -40 - 51 HRc

IS Standard

- GH - 700-800 HV

- GL - 550-715 HV

- GP -400 -500 HV

- Custom hardness available on request 

General Appearance

Steel Grit shall be as nearly angular

Micro Structure

The micro structure of steel grit shall be uniform martensite, tempered to a degree consistent with the hardness range with fine well distributed carbides if any.