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Medium Chrome Grinding Ball

Material:Chrome

Content:7%-10%

Usage:Construction Machinery chemical Petroleum Grind RefractoryMaterial Cement Plant Mining Mill

Processing Type:Casting

Size:10mm-140mm

Color：Black

 

production Description

 

Medium-chrome steel balls typically refer to steel balls containing chromium in the range of 3% to 10%. According to national standards, medium-chrome balls are required to have a hardness greater than or equal to 47 HRC (Rockwell hardness). To ensure quality, medium-chrome balls undergo high-temperature tempering treatment to eliminate casting stress.


This tempering process is crucial for enhancing the performance and reliability of medium-chrome steel balls. By subjecting them to controlled heating and cooling cycles, we eliminate internal stresses, improve hardness, and enhance overall durability. As a result, our medium-chrome steel balls meet or exceed industry standards, making them a dependable choice for a wide range of applications where hardness, quality, and resilience are essential.

production Description

 

Medium-chrome steel balls typically refer to steel balls containing chromium in the range of 3% to 10%. According to national standards, medium-chrome balls are required to have a hardness greater than or equal to 47 HRC (Rockwell hardness). To ensure quality, medium-chrome balls undergo high-temperature tempering treatment to eliminate casting stress.


This tempering process is crucial for enhancing the performance and reliability of medium-chrome steel balls. By subjecting them to controlled heating and cooling cycles, we eliminate internal stresses, improve hardness, and enhance overall durability. As a result, our medium-chrome steel balls meet or exceed industry standards, making them a dependable choice for a wide range of applications where hardness, quality, and resilience are essential.

BASIC INFO

Grinding media information

Model NO.

Steel balls

Material

Chrome

Content

3%-10%

Processing Type

Casting

Hardness

48-55HRC

Customized

Customized

Broken Rate

＜0.5%

Heat Treatment

Oil Quenching

Size

10mm-140mm

Color

Black

Transport Package

Durm or Bag

Moder No.

Zqcr10

Trademark

Chengda

Specification

Medium Chrome Grinding Media

HS Code

7325910000

Origin

China

Production Capacity

60000 Tons

 

 

Usage

Construction,Machinery,  chemical Petroleum, Grind,Refractory

Material,  Cement Plant ,  Mining Mill

CHEMICAL COMPOSITIONS(%)

Designation

Chemical Composition(%)

C

Si

Mn

Cr

Mo

Cu

Ni

P

S

ZQCr26

2.0-2.6

≤1.0

0.3-1.5

23.0-27.0

≤1.0

≤1.0

≤1.0

≤0.06

≤0.06

ZQCr20

2.0-2.6

≤1.0

0.3-1.5

18.0-23.0

≤1.0

≤1.0

≤1.0

≤0.06

≤0.06

ZQCr15

2.0-2.6

≤1.0

0.3-1.5

14.0-18.0

≤1.0

≤1.0

≤1.0

≤0.06

≤0.06

ZQCr12

2.2-3.0

≤1.0

0.3-1.5

10.0-14.0

≤1.0

≤1.0

≤1.0

≤0.06

≤0.06

ZQCr8

2.2-3.0

≤1.0

0.3-1.5

7.0-10.0

≤1.0

≤0.8

≤1.0

≤0.06

≤0.06

ZQCr5

2.2-3.2

≤1.0

0.3-1.5

4.0-6.0

≤1.0

≤0.8

≤1.0

≤0.08

≤0.08

ZQCr2

2.2-3.2

≤1.0

0.3-1.5

1.0-3.0

≤1.0

≤0.8

≤1.0

≤0.10

≤0.10

ZQCADI

3.3-3.9

2.4-3.0

1.4-1.9

0.2-0.5

≤0.5

0.1-0.5

0.1-0.5

≤0.05

≤0.05

 

MECHANICAL PROPERTIES AND MICROSTRUCTURE

Designation

HRC

AK(J/CM²)

Microstucture

Falling Times

ZQCr28

≥58

≥4.8

M+C

≥18000

ZQCr26

≥58

≥4.8

M+C

≥18000

ZQCr20

≥59

≥4.8

M+C

≥18000

ZQCr15

≥60

≥4.8

M+C

≥18000

ZQCr12

≥60

≥4.5

M+C

≥18000

ZQCr8

50-65

≥3.5

P+C/M+C

≥12000

ZQCr5

49-62

≥3.0

P+C/M+C

≥12000

ZQCr2

≥48

≥3.0

P+C

≥10000

ZQCADI

55-60

≥10

B+Fe

≥25000

C-Carbide    M-Martensite    P-Pearlite    B-Bainite     Fe-Ferrite

SPECIFICATION

Specification (mm）

Weight of Each Ball (Kg)

Pcs/ton

T/m

φ15

0.017

58824

4.94

φ17

0.024

41667

4.91

φ20

0.037

27027

4.89

φ25

0.070

14286

4.87

φ30

0.110

9091

4.85

φ40

0.257

3891

4.76

φ50

0.500

2000

4.70

φ60

0.867

1153

4.66

φ70

1.070

729

4.62

φ80

2.050

487

4.60

φ90

2.900

345

4.58

φ100

4.000

250

4.56

φ110

5.300

188

4.55

φ120

6.800

147

4.54

φ125

7.750

129

4.52

φ130

8.740

114

4.50

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