40mm to 110mm High Chromium Grinding Ball with High Hardness and Low Breakage Rate

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25M.T. m.t.
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200000M.T./Year m.t./month

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Product Description:

1.  Chemical Composition of 40mm to 110mm High Chromium Grinding Ball with High Hardness and Low Breakage Rate

 

Product

Brand

Chemical composition(%)

C

Si

Mn

Cr

Mo

Cu

Ni

P

S

Special high chrome casting iron ball

Cr26

2.0-3.3

1.2

0.3-1.5

>23.0-30.0

0-3.0

0-1.2

0-1.5

0.10

0.06

Special high chrome casting iron ball

Cr20

2.0-3.3

1.2

0.3-1.5

>18.0-23.0

0-3.0

0-1.2

0-1.5

0.10

0.06

Special high chrome casting iron ball

Cr15

2.0-3.3

1.2

0.3-1.5

>14.0-18.0

0-3.0

0-1.2

0-1.5

0.10

0.06

High chrome casting iron ball

Cr12

2.0-3.3

1.2

0.3-1.5

>10.0-14.0

0-3.0

0-1.2

0-1.5

0.10

0.06

High chrome casting iron ball

Cr8

2.1-3.3

2.2

0.3-1.5

7.0-10.0

0-1.0

0-0.8

-

0.10

0.06

Middle chrome casting iron ball

Cr5

2.1-3.3

1.5

0.3-1.5

4.0-6.0

0-1.0

0-0.8

-

0.10

0.10

Low chrome casting iron ball

Cr2

2.1-3.6

1.5

0.3-1.5

1.0-3.0

0-1.0

0-0.8

-

0.10

0.10

Casting ball

QTB

3.2-3.8

2.0-3.5

2.0-3.0

-

-

-

-

0.10

0.03

Casting ball

QTM

3.2-3.8

2.0-3.5

2.0-3.0

-

-

-

-

0.10

0.03

 

2.  Index analysis of 40mm to 110mm High Chromium Grinding Ball with High Hardness and Low Breakage Rate

 

Product

Brand

DIA

hardness

Breakage ratio of ball

Impact fatigue life of ball

Numbers time

Metallographic organization

Special high chrome casting iron ball

Cr26

15-150MM

58

0.5%

6

15000

M+C

Special high chrome casting iron ball

Cr20

15-150MM

58

0.5%

6

15000

M+C

Special high chrome casting iron ball

Cr15

15-150MM

58

0.5%

5

15000

M+C

High chrome casting iron ball

Cr12

15-150MM

58

0.5%

4

15000

M+C

High chrome casting iron ball

Cr8

15-150MM

58

0.5%

3

15000

M+C

Middle chrome casting iron ball

Cr5

15-150MM

47

0.5%

2

12000

P+C

Low chrome casting iron ball

Cr2

15-150MM

45

0.5%

1

12000

P+C

Casting ball

QTB

15-150MM

50

0.5%

-

12000

-

Casting ball

QTM

15-150MM

52

0.5%

-

12000

-

 

3. Feature of 40mm to 110mm High Chromium Grinding Ball with High Hardness and Low Breakage Rate

1) In general, grinding steel ball has high hardness: surface hardness to 58-65 HRC, volume hardness of 56-65 HRC 

2) impact toughness high: impact toughness more than 12 J / cm2. 

3) broken rate is low: the actual broken rate is not higher than 0.5%. 

4) loss of grinding forged steel ball round rate is low. 

 

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Q:How to judge whether the casting is qualified?
For example, the castings shall be in accordance with the requirements of the second types of castings in the technical requirements for aluminum alloy castings of GB/T9438-1999;
Q:Tolerance standard for casting parts
Our country has a national standard for casting tolerance levels. This national standard applies to you in malleable iron, grey cast iron, and ductile iron.
Q:How much is the amount of electrophoretic paint per square meter used in the casting?
It was a very simple question, and it was complicated by what you said.
Q:What method of casting does not rust? I think the sample is like oil
Close to the solder, and slowly dissolve is hot melt double-sided adhesive, otherwise it is oily double-sided adhesive.
Q:Heat treatment process and purpose of casting parts
Natural aging (also known as Chang Hua): lost in the open, the sun and rain, can have experienced years of wind and frost.
Q:Explain the heat treatment effect of casting parts, forging parts and welding parts
The three methods of metal processing have one thing in common. They are hot working, which are different in temperature and range of processing. Ductile cast iron is widely used because of its brittleness and poor impact. Heat treatment of cast iron usually adopts the annealing process, reduce the casting effect: 1 because of the internal stress caused by the thermal expansion and contraction, reduce the deformation after machining, decrease surface hardness, improve machining conditions;
Q:Where is the precision casting factory?
The National Precision Casting Factory is generally distributed in Shandong, Ji'nan, Jiangsu, Wuxi, Changzhou, Zhejiang, Guangdong, Panyu, Dongguan.The above are only the main distribution, many of Shandong are made supercharger, and Guangdong to jewelry industry based.
Q:What is the difference between the casting drawing and the car work drawing?
What you say is the difference between rough drawing and processing drawingThere must be a difference between the rough drawings and the rough ones
Q:Casting pieces of plastic processing requirements can not fall off the skin,
The pre treatment temperature and the quality of plastic powder are likely to be problems
Q:How can the casting be free of trachoma?
Measures for the prevention of trachoma in castings:1, sand compaction to high, paint two times;
CMD is one of the largest manufacturers and professional exporters of forged grinding balls and cast grinding balls in China, with an annual output of 50,000 tons. Now, there are 180 employees in our company, with an area of 20,000 square meters. Our products are mainly exported to more than 20 countries in the world, such as Africa, South America, Asia, and Australia. 

1. Manufacturer Overview

Location Shandong, China
Year Established 1983
Annual Output Value Above US$100 Million
Main Markets South Asia, South Asia, Central America, Western Europe, Eastern Asia, Mid East, Oceania, Africa
Company Certifications ISO9001;IS014001 Certificate

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Qingdao Port
Export Percentage
No.of Employees in Trade Department 3-5 People
Language Spoken: English;Chinese;Japanese;Korean
b)Factory Information  
Factory Size: Above 20,000 square meters
No. of Production Lines 8
Contract Manufacturing Grinding steel balls;Grinding steel cylpebs;Grinding media;Grinding meida ball
Product Price Range Average