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high chrome grinding steel ball

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PRODUCT DESCRIPTION

Introduction:

The grinding ball with chromium content ≥10%14%, HRC ≥58 is popular on current market and also very economic .

Chromium content ≥47, HRC ≥58 ,This kind ball is called special high chromium steel ball

 

High chrome grinding ball issuitable for the industry with high requirement on grinding fine, and high abrasion . 

High chrome grinding ball can increase production, and reduce consumption obviously in the cement industry.

 

Features:

Good toughness, low abrasion, low broken rate of low chromium alloy casting; low chromium ball hardness can reach 50-62HRC


Specification:

Ball Diameter(mm)

Φ10

Φ12.7

Φ15

Φ17

Φ20

Φ25

Φ30

Φ40

Φ50

Φ60

Φ70

Φ80Φ90Φ100Φ110Φ120Φ125Φ130

Chemical Composition

Item

Designation

C

Si

Mn

Cr

MoPS

Grade

ZQCr10

1.8-3.2

0.3-1.2

0.2-1.0

10~13

trace

≦0.1


Cu

Ni 

Nb

Ti

B

Zr

V

tracetracetracetracetracetracetrace

High Chromium 

Cast Grinding Balls

ZQCr17

2.0-3.2

≦1.0

0.2-1.0

13-18

≦1.0

≦0.1

≦0.08

ZQCr20

2.0-3.2

≦1.0

0.2-1.0

18-22

≦1.0

≦0.1

≦0.08

ZQCr26

2.0-3.2

≦1.0

0.2-1.0

22-28

≦1.0

≦0.1

≦0.08

Properties and Microstructure

Item

Designation

Hardness

(HRC

Impact Value(J/cm²)

Micro-structure

Times of falling Balls

Grade

ZQCr10

≧60

≧4.0

M+C

≧21000

High Chromium 

Cast  Grinding

 Balls

ZQCr17

≧60

≧4.0

≧21000

ZQCr20

≧60

≧4.0

≧21000

ZQCr26

≧60

≧4.0

≧21000


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