DIA25 to DIA150 Steel Grinding Ball for Cement and Mineral Processing in Top Quality

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Loading Port:
Qingdao Port
Payment Terms:
TT or LC
Min Order Qty:
25M.T. m.t.
Supply Capability:
200000M.T./Year m.t./month

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Product Description:

Feature of Rolling Forged Steel Grinding Ball with Supper Hardness apply for all kinds of Mineral Processing

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

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

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

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

Applied fields of Rolling Forged Steel Grinding Ball with Supper Hardness apply for all kinds of Mineral Processing

  1. 1)Metal Mines,  2) Cement plants,  

  2. 3) Power stations, 4) Chemical industry 

Chemical Elements of Rolling Forged Steel Grinding Ball with Supper Hardness apply for all kinds of Mineral Processing

Material

C

Mn

Si

Cr

S

P

V

50Mn

0.48-0.56

0.70-1.0

0.17-0.37

≤0.25

≤0.035

≤0.035

60Mn

0.57-0.65

0.70-1.0

0.17-0.37

≤0.25

≤0.035

≤0.035

65Mn

0.60-0.70

0.90-1.20

0.17-0.37

≤0.25

≤0.035

≤0.035

75Mn

0.72-0.92

0.17-0.37

0.17-0.37

0.4-0.6

≤0.035

≤0.035

75MnCr

0.70-0.85

0.7-0.8

0.17-0.37

0.2-0.7

≤0.03

≤0.03

75SiMn

0.70-0.90

0.7-1.2

0.4-0.8

≤0.25

≤0.03

≤0.03

Wear-resistant Alloy

0.5-0.65

0.4-1.0

1.4-1.8

0.9-1.2

≤0.03

≤0.03

0.1-0.2

 

Material

C

Si

Cr

Mn

S

P

Cr-22-32%

2.0-2.8

≤1.0

22-32

0.5-2.0

≤0.06

≤0.08

Cr-17-22%

2.0-2.8

≤1.0

17-22

0.5-2.0

≤0.06

≤0.08

Cr-15-17%

2.2-3.0

≤1.0

15-17

0.5-2.0

≤0.06

≤0.08

Cr-11-14%

2.2-3.2

≤1.0

11-14

0.5-2.5

≤0.06

≤0.08

 

 

 

 

 

 

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Q:The difference between sheet metal and casting parts
Casting parts are made by casting (followed by a variety of processing), the shape can be simple, can also be very complex, usually large parts, as a base, bed, work table, and so on, good seismic performance.
Q:What's the cause of the choking of the casting?,
2. when casting mold exhaust condition is not good, in the casting material use consider whether and hinder its gas permeability; in the process to consider to release more pores, multi venting; core exhaust is particularly important.
Q:Can the casting part be phosphating with the phosphating solution of the pickling board?
If it is Phosphating for painting, it is not necessary, because the surface of the casting is rough and can be firmly bonded with the paint film.
Q:Why does the precision casting factory not usually make iron castings?
The so-called precision parts is the size, roughness requirements of the piece. Cast iron parts generally do not reach the accuracy.
Q:What is the reason for 304 stainless steel precision casting parts to be changed?
304 stainless steel is easier to change than ordinary steel. Because the 304 heat conductivity is lower than that of the low doped steel, the temperature is even more uneven, and 20% of the non ferrous elements also make the distribution of internal and external elements more uneven, hard and soft inside. Each of these two produces greater internal stresses, resulting in a variant.
Q:Does anyone know how to make precise casting parts for aerospace or manufacturers of single and small quantities of automotive parts and components, mainly in Beijing, Tianjin and Tangshan?
List of China's military enterprises list of ten major military groupsChina Nuclear Industry Construction Group CorporationChina Aerospace Science and Technology CorporationChina Aerospace Science and Engineering CorporationChina Aviation Industry CorporationChina Aviation Industry Corporation IiChina State Shipbuilding CorporationcsicChina North Industries Group CorporationChina South Industries Group CorporationChina National Nuclear CorporationKey military enterprisesShipbuilding industry:China State Shipbuilding Corporation (South ship group), (China Shipping Group)China Shipbuilding Industry Corp (North Ship group), (China Shipbuilding Industry)Guangzhou Shipyard International Limited by Share Ltd (GSI)Jiangnan Heavy Industry Limited by Share Ltd (Jiangnan Heavy Industry)Nuclear industry:China National Nuclear Corporation (CNNC)China Nuclear Industry Construction Group Corporation
Q:Where is the precision casting factory?
Shandong, DongyingThe birthplace of precision casting
Q:What is normalizing, annealing, tempering, quenching? What is the difference between forging parts and casting parts?
For the nodular cast iron, the hardness, strength and wear resistance are improved, such as used in the manufacture of automobile, tractor, diesel engine crankshaft, connecting rod and other important parts. A normalizing and hypereutectoid ball annealing before, can eliminate the mesh two cementite spheroidizing annealing, to ensure that all spheres of cementite. Annealing is a metal heat treatment process, which means the metal is slowly heated to a certain temperature, sufficient for a long time, and then cooled at an appropriate speed. The purpose is to reduce hardness, improve machinability, eliminate residual stress, stabilize size, reduce deformation and crack tendency, refine grain, adjust microstructure and eliminate tissue defects. Its purpose: (1) reduce hardness and improve machinability; (2) eliminate residual stress, stabilize size, reduce deformation and crack tendency; (3) refine grain, adjust microstructure and eliminate tissue defects. In production, annealing process is widely used.
Q:What are the factors affecting the machining process of the casting material and structure?
Medium carbon steel begins, and the casting can not be punched and tapped directlyStainless steel, ordinary grade (Fe based alloy element content, less) can not do heat treatment. But processing small holes or tapping to heat treatment (solution. In practice, the annealing treatment can also be). There are a lot of stainless steel matrix is not to say, for example, nickel, cobalt and tungsten. And so on.
Q:What are the causes of pitting on the surface of a precision casting?
There is a bump on the mold. Or casting cooling fast.
CDE is one of the largest factory specialized in producing Forged Grinding Balls and Cast Grinding Balls in China. Our annual production of grinding balls is about 100,000 ton. Our company has passed ISO9001: 2000 quality system authentication. We mainly export our grinding balls to Chile, Peru, Ghana, Argentina, Philippine, South-Africa, Italy, Japan, Korea, India, Australia etc more than 20 countries and areas.

1. Manufacturer Overview

Location Shandong, China
Year Established 1971
Annual Output Value US$50 Million - US$100 Million
Main Markets Domestic Market, Southeast Asia, South Asia, North America, South America
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 6-10 People
Language Spoken: English, Chinese, Korean
b)Factory Information  
Factory Size: Above 60,000 square meters
No. of Production Lines Above 10
Contract Manufacturing Forged Grinding Ball,Cast Grinding Ball,Casting Cylpebs,Grinding Rods,Decorative Steel Ball
Product Price Range Average