China High Chrome 100mm Casting Grinding Media Ball

Grinding media Balls

Chemical Composition

Name

Designation

Chemical Composition(%)

C

Si

Mn

Cr

P

S

Grinding media Balls

ZQCr26

2.0~3.3

≤1.2

0.3~1.5

>23~30

≤0.10

≤0.06

ZQCr20

2.0~3.3

≤1.2

0.3~1.5

>18~23

≤0.10

≤0.06

ZQCr15

2.0~3.3

≤1.2

0.5~1.5

>14~18

≤0.10

≤0.06

ZQCr12

2.0~3.3

≤1.2

0.5~1.5

>10~14

≤0.10

≤0.06

ZQCr8

2.1~3.3

<2.2

0.3~1.5

7~10

≤0.10

≤0.06

ZQCr5

2.1~3.3

<1.5

0.3~1.5

4~6

≤0.10

≤0.10

ZQCr2

2.1~3.6

<1.5

0.3~1.5

1~3

≤0.10

≤0.10

Physical Property

Name

Designation

Surface Hardness

Core Hardness

Microstructure

Times of Falling Balls

(HRC)

(HRC)

Grinding media Balls

ZQCr26

>58

>56

M+C

≥15000

ZQCr20

>58

>56

M+C

≥15000

ZQCr15

>58

>56

M+C

≥15000

ZQCr12

>58

>56

M+C

≥15000

ZQCr8

>50

>47

P+C

≥10000

ZQCr5

>48

>45

P+C

≥10000

ZQCr2

>46

>45

P+C

≥10000

M-Martensite P-Pearlite C-Carbide

Grinding media balls

Diameter(mm)

Φ8

Φ10

Φ12

Φ15

Φ17

Φ20

Φ25

Φ30

Φ40

Φ50

Φ60

Φ70

Φ80

Φ90

Φ100

Φ110

Φ120

Φ130

Chemical Composition

Name

Designation

C

Si

Mn

Cr

P

S

Rare earth

Grinding media balls

ZQCr12

2.0-3.3

≤1.0

0.5-1.5

≥10-14

≤0.08

≤0.08

Trace

Properties and Microstructure

Name

Designation

Surface Hardness(HRC

Core Hardness (HRC)

Impact Value(J/CM2)

Microstructure

Time of falling balls

Grinding media balls

ZQCr12

≥58

≥56

2

M+C

≥15000

Tolerance of Diameter

Diameter

Φ10-Φ25

25<Φ<60

60<Φ≤100

100<Φ

Tolerance of Diameter

+1.0

+1.5

+2.0

+3.0

-1.0

-1.0

-1.0

-1.0