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Chrome alloy casting iron steel cylpebs

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Description

1.Diameter tolerance and Length tolerance

Diameter(mm)

8x10

10x12

12x14

14x16

16x18

18x20

20x25

25x30

30x35

35x40

40x45

45x50

50x55

55x60

Diameter tolerance(mm)

+1,-1

Length tolerance(mm)

+2,-2

 

2.Chemical composition

Name

Brand

Chemical composition(%)

C

Si

Mn

Cr

Mo

Cu

Ni

P

S

 

Chrome alloy casting steel cylpebs

ZQCr26

2.0-3.3

1.2max

0.3-1.5

>23.0-30.0

0-3.0

0-1.2

0-1.5

≤0.10

≤0.06

ZQCr20

2.0-3.3

1.2max

0.3-1.5

>18.0-23.0

0-3.0

0-1.2

0-1.5

≤0.10

≤0.06

ZQCr15

2.0-3.3

1.2max

0.3-1.5

>14.0-18.0

0-3.0

0-1.2

0-1.5

≤0.10

≤0.06

ZQCr12

2.0-3.3

1.2max

0.3-1.5

>10.0-14.0

0-3.0

0-1.2

0-1.5

≤0.10

≤0.06

ZQCr8

2.1-3.3

2.2max

0.3-1.5

7.0-10.0

0-1.0

0-0.8

≤0.10

≤0.06

ZQCr5

2.1-3.3

1.5max

0.3-1.5

4.0-6.0

0-1.0

0-0.8

≤0.10

≤0.10

ZQCr2

2.1-3.6

1.5max

0.3-1.5

1.0-3.0

0-1.0

0-0.8

≤0.10

≤0.10

 

3.Technical specification

Name

Brand

Diameter
(mm)

Hardness
(HRC)

Breakage rate

Impact value
(J/cm²)

Drop times
(times)

 Micro structure

Chrome alloy
casting steel cylpebs

ZQCr26

17-150

>58

<1%

>7

≥12000

M+C

ZQCr20

17-150

>58

<1%

>6

≥12000

M+C

ZQCr15

17-150

>58

<1%

>5

≥12000

M+C

ZQCr12

17-150

>58

<1%

>3.5

≥12000

M+C

ZQCr8

17-150

>58

<1%

>3

≥12000

M+C

ZQCr5

17-150

>47

<1%

>2

≥10000

M+C

ZQCr2

17-150

>45

<1%

>1.5

≥8000

P+C

 

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