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Forged Steel Balls for Ball Mill

Ball mill ball is ball mill equipment grinding material medium, through the ball mill ball ball and material between the collision between the friction produced mill strip effect, important basic parts, especially the precision industrial ball in the national Ball mill ball Economic development plays an important role. Widely used in cement plant, power plant, etc. High and low chromium multielement alloy steel ball, high and low chromium multielement alloy casting.

Chemical Elements

Name

Chemical Elements (%)

C

Si

Mn

Cr

Mo

Cu

P

S

Low Cr Balls

2.2-2.5

≤1.2

0.5-1

0.8-1.8

0.6-1

≤1

≤0.05

≤0.05

Middle Cr Balls

2.2-3.3

≤1.2

0.5-1

3-6

0.6-1

≤1

≤0.05

≤0.05

Normal High Cr

1.6-3.3

≤1.0

0.5-1

10-13

0.8-1

≤0.6

≤0.05

≤0.05

Special High Cr

2.0-3.3

≤1.o

2.1-3

15-23

0.8-1

≤0.6

≤0.05

≤0.05


Size & Weight

Size(mm)

Weight(kg/pc)

Quantity(pc/t)


Size(mm)

Weight(kg/pc)

Quantity(pc/t)

Φ30

0.11

9091


Φ90

2.90

345

Φ40

0.25

3891


Φ100

4.00

250

Φ50

0.50

2000


Φ110

5.30

188

Φ60

0.86

1153


Φ120

6.80

147

Φ70

1.37

729


Φ130

7.70

129

Φ80

2.05

487


Φ140

8.74

114


Physical Property & Microstructure

Name

HRC

Ak(J/cm2)

Microstructure

Times of Falling Balls

Low Cr Balls

≥45

≥1.6

P+C

≥10000

Middle Cr Balls

≥48

≥2.0

P+C

≤Φ80

≥15000





≥Φ80

≥10000

Normal High Cr

≥56

≥2.5

M+C+A

≤Φ80

≥15000





≥Φ80

≥10000


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