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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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?: Casting, do not need to provide a rough casting foundry drawings, according to your chart will put foot margin in the processing needs of the surface, the rest of the size can be found according to the mechanical design manual and manual casting.

Q: What are the factors affecting the machining process of the casting material and structure?: As for the metallographic structure, usually the finished products after casting are treated by heat treatment. The mechanical properties of the carbon steel after heat treatment (quenching and tempering) are detected. The stainless steels are treated by heat treatment (solid solution, etc.) and the metallographic structure is analyzedThere is a lot of talk and a bit of confusionIf you have a specific brand, you can search for Baidu or buy tools

Q: Explain the heat treatment effect of casting parts, forging parts and welding parts: Good welding of low carbon steel (alloy), probably because the weld workpiece rigidity, fast cooling, the weld internal crystallization of brittle microstructure (martensite), so after welding or welding process welding using self heat, reasonable arrangement of weld, welding seam and heat affected zone heat treatment. The welding heat treatment is often used to preheat before welding, after welding withasbestos cloth covering slow cooling annealing, reach the purpose, its main function is to reduce the internal stress, improve the weld microstructure of martensite formation, reduce brittle tendency, preventing welding cracks.

Q: After reaming, the roughness can reach several levels, that is to say, the sample.Casting parts in rocker arm drilling, reaming, roughness, block. After reaming, the roughness can reach several levels, that is to say, the sample.: Not processed, do not understand your problem... There's something wrong with the drilling machine. Please call me

Q: What are the causes of pitting on the surface of a precision casting?: The quality of the shell surface is out of order. Or shot blasting out of question.

Q: How to distinguish the forging parts and casting parts accurately: Distinguish from performance:The processing performance of forged parts is higher than that of the same material. The forging parts are compact and have good mechanical properties, but the casting parts may have sand holes, holes, shrinkage holes and other defects, and their mechanical properties are inferior to those of forgings. At the same time, forging processing can ensure the continuity of the metal fibrous tissue, fibrous tissue to forging and forging shape consistency, metal streamline integrity, can ensure the parts with mechanical properties and long service life good.

Q: As shown, how do I achieve the tightness test of this product, and achieve industrial production? Seek expert advice.: Precise and tight sealing of the surface to which the test piece is to be tested, equipped with an airtight test instrument, and an electrical control system. You can complete automated testing equipment

Q: Cause of choking of casting parts: The reason is not in the coated sand, see coating gas evolution, the best use of zircon powder coating (low gas evolution), there is a mold according to a vent needle, this depends on your way is flat or vertical pouring pouring pouring, if vertical pouring, venting pin on the die, and the big piece how could the plane, pouring water flat, a breath, a taboo ah!

Q: What kind of flaw detector is better for casting parts?: Casting using the detector test, you must first determine the detection process, such as the detection of surface and near surface crack defects, such as casting, recommended by CYD-3000, or CYD-5000 mobile magnetic testing machine for testing.

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.

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