Cement Grinding Ball in High Quality Dia 90mm from CNBM China

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China main port
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TT OR LC
Min Order Qty:
1000 kg
Supply Capability:
1000000 kg/month

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Product Description:

Specifications

cast steel ball for ball mill:
1) High hardness
2) Low breakage
3) Good wear-resistant
4) Steady performance

cast steel ball for ball mill:

 

1.Chemical composition

 

 

Item

C

Cr

Si

Mn

S

P

Cu

Mo

Hardness

Low Chrome

1.8-3.5

1-3.5

≤1.2

≤1.5

≤0.15

≤0.15

≤0.5

≤1.0

≥45

Medium Chrome

1.8-3.3

4-9

≤1.2

≤1.8

≤0.15

≤0.15

≤1.0

≤1.5

≥50

High Chrome

1.6-3.3

10-15

≤1.0

≤2.5

≤0.10

≤0.10

≤1.5

≤1.0

≥55

Higher Chrome

1.6-3.3

15-18

18-27

≤1.0

≤2.5

≤0.10

≤0.10

≤1.5

<2.0< span=""></2.0<>

≥60

 

2. Specification

 

No.

Diameter

(mm)

Weight of each

(kg)

Pcs/ton

1

Ø10

0.0135

74073

2

                  Ø12

0.0181

55248

3

Ø15

0.0242

41322

4

Ø20

0.0322

31056

5

Ø25

0.063

15873

6

Ø30

0.11

9091

7

Ø40

0.257

3891

8

Ø50

0.50

2000

9

Ø60

0.867

1153

10

Ø70

1.37

729

11

Ø80

2.05

487

12

Ø90

2.90

345

13

Ø100

4.00

250

14

Ø110

5.30

188

15

Ø120

6.80

147

16

Ø125

7.75

129

17

Ø130

8.74

114

 

3. Product Description

 

Model

Mechanical properties

Microstructure

HRC

Times of falling (3.5m)

Low Chromium

≥45

≥8000

P+C

Medium Chromium

≥50

≥12000

P+C

High Chromium

≥55

≥15000

M+C

Higher Chromium

≥60

≥22000

M+C

 

 

 4. Features


1) High hardness and resistance
2) Good even wear
3) No breaking

Cement Grinding Ball in High Quality Dia 90mm from CNBM  China

Cement Grinding Ball in High Quality Dia 90mm from CNBM  China


5. Applied fields
1) Mining
2) Cement plants
3) Power stations
4) Chemical industry and machinery

 

6. Production Process

    The production of casting steel balls is to melt the waste raw material such as waste steel, waste iron with medium frequency induction furnace. In the process of melting, add suitable amount of precious metal alloys(such as Ferrochrome, ferromanganese, ferro-vanadium ) to the furnace. When the temperature of the molten iron is more than 1550°C and can meet the requirements of the technics,pour the qualified molten iron to steel moulds or steel production line moulds. The content of chrome of high chrome alloy casting steel balls is ≥10.0%, the content of carbon is 1.80%-3.20%.      Since the national standards require the HRC≥58, ak≥3.0J/cm2, to up to this hardness, the high chrome balls must be quenched and tempered. After quenched and tempered, the hardness(HRC≥60) is higher, the wear-resistance is more than 2.5 times of forging balls.

 

7. Production Technics

    Raw material(waste steel,waste iron,iron alloy)factory inspection→blending→melt→composition inspection→casting→cooling and solidification→demould→clean and polish→inspection→quenching(increase hardness)→hardness inspection→tempering(eliminate stress)→inspection→warehousing

 Cement Grinding Ball in High Quality Dia 90mm from CNBM  China

 

FAQ:

1.    Q:Are you a manufactory or trading company?

A:We are a professional manufactory with 12 years’ experience and 2 years of export experience, covers an area of 30 acres.

2.    Q: May I know your MOQ request?

A:MOQ is 1 TON. 

3.    Q: Could you offer free sample?

A:We can provide free samples to you for quality testing.

4.    Q: Does your product is dangerous merchandise?

A: Not dangerous merchandise, It belongs to Not legal Inspection merchandise.

5.    Q: What about your packing?

A: Liquid in IBC tank or Flexitank;Powder in woven bags. 

6.    Q: How about your productive capacity?

A: 900000 tons/Year.

7.    Q: What is your export port?

A: China main port.

8.    Q: What is your delivery time?

 A: Within 7 days after received advanced payment.

9.    Q: Can you print logo or label on packing as customer request?

A: Yes, we can customize according to your requirements. 

 

 

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