$761.90 - $1,079.30
Min. Order : 3 Tons

Low chrome forged steel Ningguo grinding iron balls for mine

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Port: Shanghai
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability: 35000.0 Ton/Tons per Year chrome steel balls
Brand Name: XNF
Usage: For ball mill and rod mill
Place of Origin: Anhui China
material: Iron, chrome alloyed
Product name: Low chrome forged steel Ningguo grinding iron balls for mine
Loss roundness: Less than 1%
Standard: GB/T 17445-2009
Process: Raw material.smelting.moulding.grinding.quenching.temper.hardness test
Model Number: ZQCr
Certification: ISO9001-2016
Diameter: 8mm~130mm
Surface treatment: Grinding, oil quenching
Name: Chrome steel balls
Packaging Detail: iron drum/ ton bags
Package Preview: https://sc01.alicdn.com/kf/H5eef6f3cd91842439a3b1001aa27d715k.jpg_640x640.jpg,https://sc02.alicdn.com/kf/H3eeba35610ff4556b3a8f96feeabc70aH.jpg_640x640.jpg
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Low chrome forged steel Ningguo grinding iron balls for mine

Application: mainly used for mining industry, cement plant, thermal power plant, etc.

Abrasion: about (10-50) g/T in cement.

Characteristics:  With the self-developed raw materials and special heat treatment system, 

Xin Nanfang’s cast iron ball ently researched and self-developed by Xin Nanfang’s R&D center. 

achieve good properties, such as high hardness, martensite structure and good wear resistance, etc.

chrome steel balls

 1.chemical composition of chrome steel balls

Item

Designation

Chemical Composition(%)

Cr

Si

Mn

C

Cu

S

P

chrome steel balls

ZQCr15

14~18

1.2

0.5~1.5

1.6~3.3

1.5

0.10

0.10

ZQCr12

10~14

1.2

0.5~1.5

2.0~3.3

1.5

0.10

ZQCr8

7~10

<2.2

0.3~1.5

2.1~3.3

1.0

0.15

ZQCr5

4~6

<1.5

0.3~1.5

2.1~3.3

0.5

0.15

ZQCr2

1~3

<1.5

0.3~1.5

2.1~3.6

0.5

0.15

Remark: Cr specification can be customized according to client's requirement.

2.mechanical properies of chrome steel balls

Name

Designation

Surface Hardness

(HRC)

Impact value

 

 Microstructure 

 

Times of falling balls

Quenched

Non-

quenched

low chrome grinding balls for mine

ZQCr10~18

60

≥45

≥3.0

M+C

(Martensite+Carbide)

15000

ZQCr7~9

45

≥45

2.0

P+C

(Pearlite+Carbide)

 

10000

 

ZQCr1~6

--

 

3.size and tolerance of chrome steel balls

Items

Size (mm)

Diameter

(¢)

12.7

15

17

20

25

30

35

40

50

60

70

80

90

100

110

120

Tolerance

+1.0

-1.0

+1.5

-1.0

+2.0

-1.0

+3.0

-1.0

Mismatch

in mould

0.5

0.7

1.0

1.5

 
Packaging & Shipping

1)Ton bags (1000Kg Per Bag) by chrome steel balls
2)Iron drum (850~920Kg Per Drum) by chrome steel balls
3) According the customer requirement by chrome steel balls
4)There are 28drums in 1*20ft container by sea, the limited weight is 20 tons in normal port.

equipment (1)

FAQ

 1.Is your company a trader or a manufacturer?

   We are a professional manufacturer of casting ball, and we have independent export right.

 2.Where the advantages of our products ?

   High hardness, good wear resistance, low breakage rate and ISO9001:2016 certificate.

 3. Can you provide free sample?

   Free samples can be 1-5pcs, but the freight charges paid by clients, these charges will be deducted in the coming order.

 4. How about your quality control?

   In order to ensure the quality, we have strict control system before packing.

    Testing Method and Inspection Rules of Our Grinding Balls

    a. Impact Test;

    b. Rockwell Hardness Test Specimen Preparation;

    c. Chemical Composition Inspection;

    d. Surface Hardness Inspection;

    e. Internal Quality Inspection.

process

Exhibition Fair

 exhibition

 

Certifications

 certification