Menu
Steel grit

Steel grit

Steel grit is a very effective abrasive materials. Thanks to its properties is blasting with her very effective. The material is produced by crushing steel granulate, followed by the process of heat treatment, which is achieved by three different hardness - see below. The material used in the renovation of steel products, for blasting after welding, annealing and burning. Your use of the finds even in the cutting of the stone.

Chemical composition

Element Structure
carbon 0,8 - 1,2 %
Silicon min. 0,4 %
Manganese 0,6 - 1,2 %
Sulfur max. 0,05 %
Phosphorus max. 0,05 %

 

Table of sizes of steel grit

No. The size of sieves ( mm )
  0,075 0,125 0,18 0,3 0,425 0,71 1 1,18 1,4 1,7 2 2,36 2,8
G120 min. 70 min. 60   max. 1                  
G80   min. 70 min. 60   max. 1                
G50     min. 75 min. 65   max. 1              
G40       min. 80 min. 70   max. 1            
G25         min. 80 min. 70   max. 1          
G18           min. 85 min. 75   max. 1        
G16             min. 85 min. 75   max. 1      
G14               min. 90 min. 80   max. 1    
G12                 min. 90 min. 80   max. 1  
G10                   min. 90 min. 80   max. 1

Class hardness

Gx Hardness Description
GP 480 - 550 HV (45 - 52 HRC) Steel sharp-edged grit of the lowest hardness. The individual grains are rounded during the blasting process.
GL 570 - 650 HV (53 - 59 HRC) Medium-hard, sharp-edged grit whose grains also gradually round during the blasting process. Suitable for cutting off the surface and preparing the surface for further operations.
GH min. 700 HV (min. 60 HRC) The hardest and most commonly used sharp-edged grit, which has a high cleaning effect and at the same time the desired high surface roughness can be achieved. The individual grains do not round off, but remain sharp. The blasted surface has a roughened, uniform, homogeneous structure.

 

Use

The material is recommended to be used for blasting in the blasting cabin and grit GP can be used also in machines with throwing wheels.

  • for blasting of steel products
  • for surface treatment
  • steel grit GP/GL can be used for blasting throwing wheels
  • for cutting stone
  • for blasting of weldments and steel constructions
  • for blasting burnouts