20mm-150mm Forged Steel Grinding Ball apply for all kinds of Mineral Industory with Super Hardness

20mm-150mm Forged Steel Grinding Ball apply for all kinds of Mineral Industory with Super Hardness System 1

20mm-150mm Forged Steel Grinding Ball apply for all kinds of Mineral Industory with Super Hardness

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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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STAINLESS BALL WITH BEST QUALITY AND LOWEST PRICE

1.Chemical Composition of 20mm-150mm Forged Steel Grinding Ball apply for all kinds of Mineral Industory with Super Hardness

Material	C	Mn		Si		Cr	S		P
60Mn	0.57-0.65	0.70-1.0		0.17-0.37		0.25max	0.035max		0.035max
65Mn	0.60-0.70	0.90-1.2		0.17-0.37		0.25max	0.035max		0.035max
75MnCr	0.70-0.85	0.70-0.85		0.17-0.37		0.40-0.60	0.030max		0.030max
Specification of Forged Steel Grinding Balls
Nominal diameter	Diametrical Tolerance		Weight of single ball in average		Surface hardness			Impact toughness
(mm)	(mm)		(g)		(HRC)			(j/cm²)
Φ20	+2 -1		32		55-65			≥12
Φ25			64
Φ30			110
Φ40			263
Φ50			513
Φ60	+3 -2		888
Φ70			1410
Φ80			2104
Φ90			2996
Φ100			4110
Φ110	+4 -2		5457		50-60
Φ120			7102
Φ130			9030
Φ140	+4 -3		11278
Φ150			13871

2. Hardness of 20mm-150mm Forged Steel Grinding Ball apply for all kinds of Mineral Industory with Super Hardness

	1A	2A	3A	45	65
Superficial	>60HRC	>60HRC	>60HRC	>58HRC	>60HRC
Volumetric	>58HRC	>60HRC	>60HRC	>55HRC	>60HRC

3.Feature of 20mm-150mm Forged Steel Grinding Ball apply for all kinds of Mineral Industory with Super Hardness

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.

20mm-150mm Forged Steel Grinding Ball apply for all kinds of Mineral Industory with Super Hardness

Q: Casting blank in the cooling process to release a large amount of heat energy, what can be recycled?: General Casting Factory Casting Division will be in your chart marked on shrinkage and processing margin figure (usually with red and green pen) to the patternmaker production of wood or other material mould diagram.

Q: our factory now produces steel castings in the use of polishing directly after spraying processing, but the powder sprayed 15But the spray powder touched off what is the reason we are not very strict requirements not only need to peel off bubbles can also, because our products are steel castings so we use steam hole sludge put on. Do not know if this spray treatment has no effect to thank friends with us!: Steel parts are not familiar. But after spraying, the powder should be divorced from the adhesive force is too low, try to provide the surface roughness of the casting

Q: What are the requirements for casting steel castings?: 1, high quality requirements of the surface or the main processing surface should be placed below.

Q: The casting sand is going on: Dispersed sand inclusion is common on the surface and subcutaneous of steel castings, often concentrated on the outer surface of the upper box and the inner surface of the lower case, and a few of them are inside the cast steel parts.

Q: What kind of casting process is used for cast iron parts? And what are the cast steel parts adopted?: The main content of red sand table (Institute of soil science, China) silica 79.4%. three 1.48%. three 10.55%. two aluminum oxide iron oxide, calcium oxide 0.85%. Magnesium Oxide 0.52%. 1440. refractory mud 3.06% LOI 1.98% red sand with high silicon content, permeability is strong, durable, high refractoriness, good angle, low moisture content, less mud the casting finish is high, the basic requirements of sand should meet the following requirements: Casting of high purity and cleanliness, with silica sand as an example, iron sand SiO2 content of more than 90%, the big steel casting requests the SiO2 content of more than 97%; the high refractoriness and thermal stability; the suitable particle the shape and particle composition; it is not easy to be wetted by the liquid metal; cheap. The particle shape and composition of casting sand particle shape and particle composition permeability properties such as mobility, sand compaction, permeability, strength and resistance to liquid metal effects, is an important indicator of the quality of casting sand.

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: How to cast iron and wrought iron collocation: So we can only watch and ear distinction: 1, see: Iron fracture is rough, showing a bead (for the sake of coarse grain iron), and wrought iron fracture is generally more smooth; if this is a new fracture, but also to see the dark and shiny born iron wrought iron pig iron is bright; the fracture is generally irregular, because it is very brittle, mostly is interrupted, (which is processed, it is very flat and wrought iron) must not be interrupted, mostly by certain way processed separately, so the fracture is generally neat; if the fracture is that is cutting, wrought iron, iron is not cutting; iron surface will not have pores, familiar iron porosity; if a piece of iron is a significant deformation (bending) that is wrought iron because of poor plasticity It doesn't have to be so deformed, it's really bent, or it's broken, or it's obviously cracked, and it doesn't bend very much. There are some details that can not be made clear. It is necessary to have some experience.

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.

Q: Would you please tell me how to use casting parts for a year?The cast of an aircraft wing needs to be put aside for a year before it breaks;Does anyone know why?: 3, the resonance method is cast on its resonant frequency vibration 1060ndn, to eliminate the residual stress in casting.

Q: Can the casting part be phosphating with the phosphating solution of the pickling board?: Like stainless steel casting, duplex stainless steel casting is phosphating, ductile iron gray iron is not required

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