Hyper Steel Grinding Media Balls


Hyper steel Grinding Media Balls and Cylpebs as per IS 6079-1980

(a) CHEMICAL COMPOSITION: The chemical composition of the grinding media will be as per IS 6079-1980: as follows:

GRADE-1
(For size 60 mm & above)
GRADE-2
(For size below 60 mm)
Carbon 1.10-1.60 1.50-2.00
Silicon 1.00 Max. 1.00 Max.
Manganese 0.90-1.60 0.90-1.60
Chromium 1.20-2.40 1.20-2.40
Sulphur 0.06 Max. 0.06 Max.
Phosphorous 0.06 Max. 0.06 Max.

(b) HARDNESS: When tested in accordance with IS 1500/1983 the hardness at any point across the section of the ball is more than 375 BHN.

(c) MICROSTRUCTURE: Microstructure shall be free from continuous carbide network.

(d) HEAT TREATMENT: The grinding media is suitably heat treated to obtain the required hardness and Microstructure.

(e) STANDARD SIZE OF GRINDING MEDIA:

Balls diameter (mm) - 125,100,90,80,75,70,65,60,50,40,30,25,20 & 17
Cylpebs (mm)-25x25, 22x22, 19x19

OTHER TECHNICAL SPECIFICATIONS WILL CONFIRM TO IS 6079-1980

(f) TOLERANCE ON SIZE: Variation on size shall not exceed the following limits:-

SHAPE AND SIZE TOLERANCE (mm)
(1) Balls for sizes 60 mm & above +/- 3.00
(2) Balls for sizes 50 mm & below +/- 2.50
(3)Cylpebs for all sizes +/- 1.50

Hyper steel Grinding Media Balls and Cylpebs as per IS 6079-1989

(a) CHEMICAL COMPOSITION: The chemical composition of the grinding media will be as per IS 6079-1989: as follows:

GRADE-1
(For size 60 mm & above) 
GRADE-2
(For size below 60 mm)
Carbon 1.25-1.50 1.60-1.90
Silicon 1.00 Max. 1.00 Max.
Manganese 1.20-1.50 1.20-1.50
Chromium 1.50-2.00 1.50-2.00
Sulphur 0.06 Max. 0.06 Max.
Phosphorous 0.06 Max. 0.06 Max.

(b) HARDNESS: When tested in accordance with IS 1500/1983 the hardness at any point across the section of the ball is more than 375 BHN.

SHAPE AND SIZE TOLERANCE (mm)
(1)Balls for sizes 60 mm & above +/- 2.50
(2) Balls for sizes 50 mm & below +/- 2.00
(3) Balls for sizes 25 mm to15mm & Cylpebs for all sizes +/- 1.50