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ABRASIVESSILICON CARBIDE CALCIUM CARBIDE

Steel abrasives are steel particles that are used as abrasive or peening media. They are usually available in two different shapes (shot and grit) that address different industrial applications. Steel shot refers to spherical grains made of molten steel through an atomization (“granulation”) process, available in different

sizes and hardnesses.

 

 

 

Product Size
(mm)

% : min & max cumulative percentages allowed on corresponding sieves

S780 2.0-2.8

0%

 

85 %
min

97 %
min

                       

 

S660 1.7-2.4

     

85 %
min

97 %
min

                     

 

S550 1.4-2.0

   

0%

 

85 %
min

97 %
min

                   

 

S460 1.2-1.7

   

0%

5 %
max

 

85 %
min

96 %
min

                 

 

S390 1.0-1.4

     

0%

5 %
max

 

85 %
min

96 %
min

               

 

S330 0.85-1.2

       

0%

5 %
max

 

85 %
min

96 %
min

             

 

S280 0.71-1.0

 

8

     

0%

5 %
max

 

85 %
min

96 %
min

           

 

S230 0.6-0.85

 

2.36

       

0%

10 %
max

 

85 %
min

97 %
min

         

 

S170 0.42-0.71

             

0%

10 %
max

   

85 %
min

97 %
min

     

 

S110 0.3-0.5

                 

0%

10 %
max

   

80 %
min

90 %
min

 

 

S70 0.18-0.35

 

0%

                 

0%

10 %
max

 

80 %
min

90 %
min

 

SAE Sieve No.

7

 

10

12

14

16

18

20

25

30

35

40

45

50

80

120

 

Aperture

2.80

 

2.00

1.70

1.40

1.18

1.00

0.85

0.71

0.60

0.50

0.425

0.355

0.30

0.18

1.125

 

 

Steel grit characterizes grains with a predominantly angular shape. These grains are obtained by crushing steel shot, therefore they exhibit sharp edges and broken sections. Harder than steel shot, it is also available in different sizes and hardnesses.

 

 

 

Product Size
(mm)

% : min & max cumulative percentages allowed on corresponding sieves

G12 1.7-2.4

 

0%

 

80 %
min

90 %
min

                     

 

G14 1.4-2.0

   

0%

 

80 %
min

90 %
min

                   

 

G16 1.2-1.7

     

0%

 

75 %
min

85 %
min

                 

 

G18 1.0-1.4

       

0%

 

75 %
min

 

85 %
min

             

 

G25 0.71-1.2

         

0%

   

70 %
min

   

80 %
min

       

 

G40 0.42-1.0

           

0%

       

70 %
min

 

80 %
min

   

 

G50 0.3-0.71

               

0%

       

65 %
min

75 %
min

 

 

G80 0.18-0.42

                     

0%

   

65 %
min

75 %
min

 

SAE Sieve No.

7

8

10

12

14

16

18

20

25

30

35

40

45

50

80

120

 

Aperture

2.80

2.36

2.00

1.70

1.40

1.18

1.00

0.85

0.71

0.60

0.50

0.425

0.355

0.30

0.18

1.125

 

 

This abrasive is used for cleaning aluminum and other non-ferrous castings and forgings. Stainless steel shot can leave a surface free of contamination that causes rust.

 

mm

EN 20

EN 30

EN 40

EN 50

EN 60

EN 100

1.400

         

5 % max

1.180

       

5 % max

 

1.000

     

5 % max

   

0.850

   

5 % max

     

0.710

       

5 % max

 

0.600

     

90 % max

   

0.500

 

5 % max

       

0.425

   

90 % max

     

0.355

           

0.300

5 % max

         

0.212

           

0.106

 

90 % max

       

0.075

90 % max

         

Silicon carbide is used for the de-oxidation and re-carburation of cast iron and steel in foundries. Metallurgical grade Silicon Carbide grain is a unique material for use in the production of iron and steel. It is used in the foundry industry for electric furnace production of gray, ductile, and malleable iron. It is an excellent source of carbon and silicon, promoting nucleation and rendering the iron more responsive to inoculation, deoxidizing the iron, which enhances furnace lining life.

The main application of calcium carbide is when reacting with water to generate acetylene gas. Carbide is used as a desulphurising agent in the metallurgical industry to remove sulphur from the iron before it is converted in the BOF (Basic Oxygen Furnace). Carbide is also used for FeO and MnO deoxidation in the steel industry.