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Hot Rolled Grinding Steel Ball

Hot Rolled Grinding Steel Ball

Grinding balls for steel grinding machines (hereinafter referred to as grinding steel balls) are a kind of medium used in the ball grinding mill to grind the materials therein. With an annual capacity of 500,000 tons, the grinding steel ball is mainly used in mines, with products exported to Southeast Asia, Australia, Africa, North America, Central and South America and other countries and regions. It has become one of the largest production bases in the world, with exported products reaching 95%. Longteng grinding steel balls occupy most of the global high-end application markets.

Function

● High precision control of product quality
● Base metal production lines of the wear-resisting material adopt a full set of short-stress rolling mill produced by Danieli Group, Italy. The base metal is made through continual rolling to realize high precision control of product quality.
● Hot rolled steel balls are made from round steel produced by steel mills through hot rolling and with whole process automation control. The ball is uniform in hardness, with the heart having high hardness, being low in broken rate, and high in impact value.

As one of the most reliable Steel Ball manufacturers and suppliers in China, it is here waiting for your contact to import quality hot rolled grinding steel ball at a good price from us.

GRINDING   BALL SPECIFICATION


     

Product data sheet

 

 

Inch

Size  

T   weight

(Kg)  

Actual Diameter

Range   (mm)

Material

Surface   hardness 

(HRC)+/-0.5HRC  

Core hardness    (HRC)+/-0.5HRC

Volume Hardness

(HRC)+/-0.5HRC  

3/4 ”

D20MM

0.039+/-0.005  

19.3~22.3

B2

63-66

62-64

63-66

1 ”

D25MM

0.075+/-0.01

24.5~27.5

B2

63-66

62-64

63-66

1 1/4 ”

D30MM

0.14+/-0.02

29.7~32.7

B2

63-66

62-64

63-66

1 1/2 ”

D40MM

0.31+/-0.04

39.6~43.6

B2

63-66

62-64

63-66

2”

D50MM

0.59+/-0.05

50~54

B2

62-65

61-63.5

62-65

2 1/2 ”

D60MM

1.0+/-0.05

60.4~64.4

B2

62-65

59-61

61-64

2 1/2 ”

D65MM

1.25+/-0.07

65.6~70.6

B2

62-65

59-61

61-64

2 1/2 ”

D65MM

1.25+/-0.07

65.6~70.6

B3

61-63

58-60

58-62

3”

D75MM

1.9+/-0.1

76~81

B2

61-63

59-62

60-63

Inch  

Size  

T weight

(Kg)  

Actual Diameter

Range   (mm)

Material  

Surface hardness 

(HRC)+/-0.5HRC  

Core hardness    (HRC)+/-0.5HRC

Volume Hardness

(HRC)+/-0.5HRC  

3”

D75MM

1.9+/-0.1

76~81

B3

61-63

58-60

58-62

3 1/2”

D90MM

3.1+/-0.15

88~93.5

B3

60-62

57-60

59-62

3 3/4”

D94MM

3.5+/-0.2

92~97.5

B3

60-62

57-60

59-62

4”

D100MM

4.1+/-0.2

98~103

B3

60-62

57-60

59-62

4.2”

D105MM

4.76+/-0.2

103~108

B3

59-62

57-60

59-62

4.5”

D115MM

6.3+/-0.2

113~118

B3

59-62

57-60

58-62

5”

D125MM

8.2+/-0.3

123~128.5

B3

58-62

57-60

58-62

 

note

1.      Roundness: Spherical with little overfill or underfill within the national standard: GB-8649-88 and YB/T 091-2005

2.      Metallographic structure: Substantially martensite with some retained Austenite, Bainite& Carbides

3.      Breakage guarantee: -Nil breakages upon delivery

-Less than 1% in normal and correct operation conditions 

 

       

 

CHEMICAL   COMPOSITION


 

 


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