Forged Steel Grinding Ball Made in China with Top Quality and little Breakage Rate

Forged Steel Grinding Ball Made in China with Top Quality and little Breakage Rate System 1

Forged Steel Grinding Ball Made in China with Top Quality and little Breakage Rate System 2

Forged Steel Grinding Ball Made in China with Top Quality and little Breakage Rate System 3

Forged Steel Grinding Ball Made in China with Top Quality and little Breakage Rate

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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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Mechanical Properties of Forged Steel Grinding Ball Made in China with Top Quality and little Breakage Rate

Code	Nominal diameter	Impact test Ak,J	Falling ball impact fatigue life	HRC
				Surface	Heart
HN-75MNCr	≤90	>12	≥10000	≥62	≥58
	>90			≥58	≥55
HN-40MNCr	≤90	≥12	≥10000	≥55	≥52
	>90			≥52	≥50
HN-65MN	≤90	≥12	≥10000	≥60	≥42
	>90			≥58	≥40

Chemical Composition of Forged Steel Grinding Ball Made in China with Top Quality and little Breakage Rate

Model	C	Mn	Si	Cr	S	P	Mo	V	Ti
HN-40MNCr	0.40-0.50	0.7-1.2	0.17-0.37	0.9-1.1	0.03max	0.03max	0.02max	0.02max	0.02max
HN-65MN	0.62-0.70	0.9-1.2	0.17-0.37	0.25max	0.035max	0.035max	0.02max	0.02max	0.02max
HN-75MNCr	0.70-0.85	0.7-0.8	0.17-0.37	0.4-0.9	0.03max	0.03max	0.02max	0.02max	0.02max

Product Description of Forged Steel Grinding Ball Made in China with Top Quality and little Breakage Rate

1)Size:from 20mm to 150mm(0.75''-6'')

2)Surface hardness to55-67HRC, volume hardness of 50-63HRC

3)Endurance test times>10000

4)Impact test>12AK.J/CM²

5)Material: HN-65MN,HN-75MNCr,HN-40MNCr meet client's special needs.

6)Chromium percentage: from 0.25 to 1.1%.

7)Heat treatment: cycles.

8)Production Technical: traditional hammer forging; Upsetting forged; Rolling forged

9)Application :Mining ,Cement plant, ,Power station,and other grinding industries

10)Certification:SGS/TUV/BV/COTECNA/ISO9001:2008

Forged Steel Grinding Ball Made in China with Top Quality and little Breakage Rate

Q: What is normalizing, annealing, tempering, quenching? What is the difference between forging parts and casting parts?: The aim is to make the grain fine and distribute the carbide evenly. The difference between normalizing and annealing is that normalizing cooling rate is slightly faster than annealing cooling rate, so normalizing structure is finer than annealing structure, and its mechanical properties are also improved. In addition, normalizing furnace cooling does not occupy equipment and has higher productivity. Therefore, normalizing may be used instead of annealing as much as possible. The main application areas of normalizing are as follows: for low carbon steel, after normalizing, the hardness is slightly higher than that of annealing, and the toughness is better. It can be used as the pretreatment of cutting. Used for medium carbon steel, instead of quenching and tempering, as the final heat treatment, or as an induction heating method before surface hardening. Used for tool steel, bearing steel, carburizing steel, etc., it can eliminate or restrain the formation of network carbide, so as to obtain the good organization of spheroidizing annealing. For cast steel, the microstructure can be refined and the machinability can be improved. Used for large forgings, which can be used as final heat treatment, so as to avoid larger cracking tendency during quenching.

Q: Casting parts by shot blasting, spray painting, baking after the formation of very small rust spots, how to solve ah?: The first process is very important. Shot blasting must be thorough. The solution is to wipe the surface of the paint with a release. Re shot

Q: What is the difference between forging parts and casting parts?: The casting parts are low in cost and short in production period. Because the molten iron has good flow properties, complex shapes can be formed. But because there may be sand holes, pores, shrinkage holes and other defects, the quality is unstable, easy to produce many defects, mechanical properties are not forged well, thus affecting the service life.

Q: What method of casting does not rust? I think the sample is like oil: The surface of a general casting is easy to rust. In order to prolong the rusting period, antirust paint or antirust oil is usually sprayed. What you said should be anti rust oil.

Q: The cause of fracture and why there is no toughness: This question is too broad, see what the casting casting Oh in order to reduce the wayward cast steel, ductile iron, gray iron and white iron, you can choose the material according to their own requirements.

Q: What is the difference between casting and stamping parts?: Cold stamping is generally no longer done by cutting, or only a small amount of cutting is required. The precision and surface state of hot stamping parts are lower than those of cold stamping parts, but they are better than those of castings and forgings, and the amount of cutting is less.Stamping is mainly based on process classification, can be divided into separation process and forming process two major categories.

Q: How can the casting be plated with ordinary zinc plating? The coating is too thin and requires 0.08 thickness: Hot galvanizing doesn't seem to workThe zinc layer is 275g/ square meters of material coating is 0.019mm (mm), up to 0.08 thick.

Q: We are small castings, the need for surface treatment of shot blasting machine, about how much?: according to the comprehensive consideration of factors such as yield, size of workpiece commonly used on the market the crawler shot blasting machine has Q324, Q326, Q328, Q3210, and each time the amount of their treatment were 125KG, 200KG, 400KG, 600KG, the specific use of what types also need to be determined according to the actual situation

Q: Where is the precision casting factory?: Shandong, DongyingThe birthplace of precision casting

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.

Grinding King are leading manufacturer and professional exporter of grinding media balls in China.with the annual output of 50,000 to 70,000 metric tons.Our products grinding media balls are mainly exported to more than 20 countries and regions in the world, such as Japan,Korea,Africa,Zambia,Malaysia,Phillipines,Indonesia,Mongolia,Australia,UAE,Chile etc.

1. Manufacturer Overview

Location	Shandong, China
Year Established	2000
Annual Output Value	Above US$100 Million
Main Markets	Africa; Mid East;South Asia;Southeast Asia;Eastern Asia;Southern Europe
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; Tianjin Port; Shanghai Port
Export Percentage
No.of Employees in Trade Department	6-10 People
Language Spoken:	English；Chinese；
b) Factory Information
Factory Size:	Above 40,000 square meters
No. of Production Lines	Above 10
Contract Manufacturing	Grinding Ball; Grinding Rod; Cylpeb; Grinding Media; Ball Mill Ball
Product Price Range	Average