Cast grinding alloyed steel balls with 12.7-120mm
Cast grinding alloyed steel balls with 12.7-120mm
Cast grinding alloyed steel balls with 12.7-120mm
Cast grinding alloyed steel balls with 12.7-120mm
Cast grinding alloyed steel balls with 12.7-120mm

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Cast grinding alloyed steel balls with 12.7-120mm

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Model No. : XNFZQ006
Brand Name : Xin Nanfang

Product description

Cast grinding alloyed steel balls with 12.7-120mm Application: mainly used for mining industry, cement plant, power station, etc. Abrasion: about (10-50) g/t in cement Characteristics: Xin nanfang has the unique automatic production line of grinding cylpebs in China, which is independently researched and self-developed by xin nanfang’s R&D center. With the self-developed raw materials and special heat treatment system, xin nanfang’s cylpebs achieve good properties, such as high hardness, martensite or bainite metallographic structure and good wear resistance, etc. Why choose us? 1.Where the advantages of our products ? High hardness, good wear resistance, low broken rate, can greatly reduce the production cost. 2.How many high and low chromium ball breaking rate and single warehouse receipt consumption? High chromium  broken rate less than equal to 0.5%  Single warehouse receipt consumption 18g/T for cement Low chromium  broken rate less than or equal to 3%  Single warehouse receipt consumption 50g/T for cement  3.Quality assurance checking or testing a.workshop self-inspection b.quality inspection,  c.lab final inspection The process of grinding casting alloyed ball:     1.Chemical Composition

Items

Brand

Chemical composition(%)

C

Si

Mn

Cr

Mo

Cu

Ni

P

S

Extra higchrome casting alloyed ball

ZQCr20

2.0~3.0

≤1.0

0.5~1.5

18~22

0~2.5

0~1.2

0~1.5

≤0.10

≤0.10

High chrome casting alloyed  ball

ZQCr15

2.0~3.0

≤1.0

0.5~1.5

12~17

0~3.0

0~1.0

0~1.5

≤0.10

≤0.10

High chrome casting alloyed ball

ZQCr13

2.0~3.0

≤1.0

0.5~1.5

11~14

0~1.0

0~2.0

0~1.5

≤0.10

≤0.10

Middle chrome casting alloyed ball

ZQCr7

2.1~3.2

0.5~2.2

0.5~1.5

6~10

0~1.0

0~0.8

0~1.5

≤0.10

≤0.10

Low chrome casting alloyed  ball

ZQCr2

2.2~3.6

≤1.2

0.5~1.5

1.0~3.0

0~1.0

0~0.8

——

≤0.10

≤0.10

Bainite ductile casting alloyed ball

ZQSi3

3.2~3.8

2.0~3.5

2.0~3.0

——

——

——

——

≤0.10

≤0.03

  2.Mechanical Properties 

    Items

     Brand

Surface hardness(HRC)

Endurance impact test(Times)

Quenched

Unquenched

Extra high chrome casting alloyed  ball

ZQCr20

63

≥45

≥8000

High chrome casting alloyed ball

ZQCr15

63

≥45

≥8000

High chrome casting alloyed ball

ZQCr13

63

≥49

≥8000

Middle chrome casting alloyed ball

ZQCr7

≥48

≥8000

Low chrome casting alloyed  ball

ZQCr2

≥45

≥8000

Bainite ductile casting alloyed ball

ZQSi3

≥50

≥8000

3.Size of Casting Balls

Items

SIZES

¢17

¢20

¢25

¢30

¢40

¢50

¢60

¢70

¢80

¢90

¢100

¢110

¢120

¢130

Tolerance

+1.0

-1.0

+2.0

-1.0

+3.0

-1.0

+3.5

-1.5

Difference between max diameter and min diameter 

≤1.0

≤2.0

≤3.0

≤4.0

              
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