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Steel Grit

Steel Grit is produced from high carbon steel crushed to granular sizes. It is then tempered to GH hardness. The Steel Grit is then screened into different sizes. Industrial Minerals Steel Grit is manufactured to a very high standard to ensure uniform hardness, density and microstructure.

 

Description

Steel Grit is used extensively in blast rooms that are able to recycle abrasive media. It us used for descaling steel components and in the foundry industry to remove sand from components when castings have been subjected to ultra high temperatures and the sand is baked on to such an extent that steel shot is unable to remove it.

Steel Grit is made by crushing steel shot to angular particle subsequently tempered to different hardness to cater for different application, screened by size according to SAE Standard specification.

Chemical Composition:

Carbon 0.85-1.20%
Silicon 0.45-1.50%
Manganese 0.35-1.20%
Phosphorus <0.05%
Sulfur <0.05%

Standard Hardness:
The steel grit is manufactured by crushing the fully hardened shot to granular grit form, screening and tempered to three different hardness range as follows :
GH = 63-67 HRc.
GL = 56-60 HRc.
GP = 40-50 HRc.
It is also available in tempering to various hardness range for special application.

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

Density:
The density of steel grit shall be not less than 7.4 g/cc.

Size Distribution:

Grades Available:

Grade Selection Guide
GH12 Blast Cleaning large to medium steel and iron castings
GH14 Blast Cleaning large to medium steel and iron castings
GH16 Blast Cleaning large to medium steel and iron castings
GH18 Granite Cutting, Blast Cleaning Castings, Cleaning Structural Steel
GH25 Granite Cutting, Blast Cleaning Castings, Cleaning Structural Steel
GH40 Granite Cutting, Blast Cleaning Castings, Cleaning Structural Steel
GH50 Cleaning Non-ferrous Casting and Structural Steels
GH80 Cleaning Non-ferrous Casting and Structural Steels

Pack Size:
25kg Bags