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Chrome Grinding Steel Balls

There are four types chrome grinding steel balls. low chrome alloy grinding steel ball,middle chrome alloy grinding steel ball, high chrome alloy grinding steel ball  and supper high chrome alloy grinding balls.


  • Brand:

    Ningguo Zhicheng Machine
  • Payment:

    TT,LC
  • Product origin:

    China
  • Shipping port:

    Shanghai
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Product Details

Chrome Grinding Steel Ball


Grinding steel ball is used to in mining,cement plant,power station,chemicial industrial and other many industry areas.


A good surface grinding steel ball should not have crack,gas porosity,shrinking cavity,cold shut,etc.If producing these problems,it does not only relate with production technology,but also related with the producing equipments.

 

Ningguo Zhicheng does not only offer excellent grinding ball making machines,but also production technology in producing cast grinding balls.Now we mainly introduce the grinding balls from our customers who are using our grinding ball machines to produce grinding steel balls.


PRODUCTS:

1. High,Middle And Low Grinding Steel Balls

 

2. Specification   

DIa 8 mm

Dia10 mm

Dia 12.5mm

Dia 15mm

Dia 20mm

Dia 25mm

Dia 30mm

Dia 40mm

Dia 50mm

Dia 60mm

Dia 70mm

Dia 80mm

Dia 90mm

Dia 100mm

Dia 110mm

Dia 120mm

Dia 125mm

Dia 130mm

Customized according to customer requirements

 

3.Mechanical Property And Metallographic Structure

Product

Hardness(HRC)

AK(J/cm²)

Metallographic Structure

The times of falling balls

Low Cr Ball

≥45

≥2.0

P+C

8000

Middle Cr Ball

≥48

≥2.0

P+C

9000

High Cr Ball

≥58

≥2.5

M+C

18000

Super Hi Cr Ball

≥60

≥3.0

M +C

20000

C-Carbide       M-Martensite       P-Pearlite

 

4. Chemical Composition

                                    Chemical Composition

Product

C

Si

Mn

Cr

P

S

Low Cr Ball

2.2-3.5

≤1.2

≤1.0

0.8-2.2

≤0.10

≤0.10

Middle Cr Ball

2.0-3.3

≤1.2

≤1.0

4.9-9.0

≤0.10

≤0.10

High Cr Ball

2.0-3.2

≤1.0

≤1.0

10-12

≤0.10

≤0.06

Super Hi Cr Ball

2.0-3.2

≤1.0

≤1.0

18-28

≤0.10

≤0.06

 

Production Equipent:

1. Automatic grinding ball molding line

2.Grinding ball mold

3. Heat treatment furnace


Test Equipment:

1. Direct reading spectrometer

2. Cutting machines for metallographic structure

3. Metallographic Microscope

4. Hardness tester

5. Impact tester

6. Quality inspection

 

PACKAGE

1. one ton bag(1000kg)

2. Iron drum(850-920kg per drum)


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