Dajan Holding Group Co., Ltd.
Main products:Fuse,Circuit Breaker,Distribution Box,Contactor,Relay,Pushbutton,Electrical Accessory
Products
Contact Us
  • Contact Person : Mr. Ge Eden
  • Company Name : Dajan Holding Group Co., Ltd.
  • Tel : 86-577-62728888
  • Fax : 86-577-62769982
  • Address : Zhejiang,Yueqing,Dajan Industrial Zone, Liushi, Wenzhou 325604, China
  • Country/Region : China
  • Zip : 325604

casting grinding ball

casting grinding ball
Product Detailed
the character of cast grinding ball: 1.even hardness 2.unbreakble 3.grinding resistance, 4.high impact value

Items

Suface hardness(HRC)

Endurance impact test

(Times)

Quenched

Unquenched

High chrome Casting grinding balls

≥60

≥50

 ≥8000

Middle chrome Casting grinding balls

--

≥50

Low chrome Casting grinding balls

--

≥45

Forged steel ball 

55-65HRC

Items

SIZES

φ17

φ20

φ25

φ30

φ40

φ50

φ60

φ70

φ80

φ90

φ100

φ110

φ120

φ130

Tolerance

+1.0

-1.0

+2.0

-1.0

+3.0

-1.0

+3.5

-1.5

Difference between

max diam and min diam

≤1.0

≤2.0

≤3.0

≤4.0

Items

Brand

Chemical elements

C

Si

Mn

Cr

Mo

Cu

Ni

P

S

High chrome casting iron ball

JCCr20

2.0-3.0

≤1.0

0.5-1.5

18-22

0-2.5

0-1.2

0-1.5

≤0.10

≤0.10

High chrome casting grinding ball

JCCr15

2.0-3.0

≤1.0

0.5-1.5

14-17

0-3.0

0-1.0

0-1.5

≤0.10

≤0.10

High chrome casting grinding ball

JCCr13

2.0-3.0

≤1.0

0.5-1.5

11~14

0-1.0

0-2.0

0-1.5

≤0.10

≤0.10

Middle chrome casting grinding ball

JCCr7

2.1-3.2

0.5-2.2

0.5-1.5

6~10

0-1.0

0-0.8

0-1.5

≤0.10

≤0.10

Low chrome casting grinding ball

JCCr2

2.2-3.6

≤1.2

0.5-1.5

1.0-3.0

0-1.0

0-0.8

≤0.10

≤0.10

casting grinding ball



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