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ZQCr2

release time:1515036737 Click volume:63

  

name

high chromium alloy grinding ball,forgings

 

middle chromium alloy grinding ball,forgings

low chromium alloy grinding ball,forging

 

Multi

component

alloy grinding ball,forging

ZQCr20

ZQCr17

ZQCr12

ZQCr8

ZQCr2

 

chemical composition

(%)

C

2.0-3.3

2.0-3.2

2.0-3.2

2.0-3.3

2.0-3.6

1.8-3.2

Si

≤1.0

≤1.0

≤1.5

≤2.2

≤1.2

≤2.2

Mn

0.3-1.5

0.3-1.5

0.3-1.5

0.3-1.5

0.1-1.5

0.1-1.5

P

≤0.10

≤0.10

≤0.10

≤0.10

≤0.10

≤0.10

S

≤0.06

≤0.06

≤0.06

≤0.06

≤0.06

≤0.06

Cr

19-21

16-18

11-13

7-10

1.0-3.5

4-8

Mechanical    properties

AK(J/cm2)

≤6

≤5.5

≤5.0

≤4.5

≤3

≤4

HRC

59-63

58-62

58-61

48-55

45-48

45-50

Broken rate(%)

<0.1

<0.2

<0.2

<0.5

<1

<0.5

Single warehouse wear(g/t)

<20

<25

<25

<50

<50

<50

Fatigue life(times)

>30000

>28000

>26000

>16000

>10000

>16000