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Forged Grinding Balls

Forged steel ball for mining

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Forged steel ball for mining

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Forged Grinding Balls

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　　Forged Steel Balls

　　It is to heat the metal to 700-1300 ° C, and use metal forging to pressurize the metal billet to produce plasticity. Forging can eliminate defects such as looseness in the as-cast state generated during the smelting process of the metal, and optimize the microstructure. For metal streamlines, forged parts, forged steel balls must be replaced with the most wear-resistant materials if they are wear-resistant. Select national standard 60Mn, 65Mn, or high-efficiency wear-resistant alloy steel materials independently developed by our company. It is a national large-scale steel plant. Production of steel. Because it is also a material, the quality produced in different steel mills is also different, and the quality of the forgings is 80% good or bad. Use high manganese steel as much as possible, with good impact resistance and enhanced strength. Good abrasion resistance, not easy to break.

　　Forged steel balls are favored by customers because of their cheap price and economic durability. For example, international mining giants Rio Tinto, BHP Billiton, and Anglo Gold all use forged steel balls.

　　Product features

　　1. Small crushing rate: 25mm-80mm≤0.5%, 90mm-140mm≤1%;

　　2. High hardness and uniform distribution: the surface hardness can reach HRC57-67, the volume hardness can be inverted HRC56-64, and the overall hardness is high and uniformly distributed in a gradient;

　　3. No loss of circle, no deformation, abrasion resistance;

　　4. Wet magic ball mill suitable for various mines, forged steel balls have strong acid and alkali resistance and corrosion resistance;

　　Applied Filed

　　Widely used in large metallurgical mines (such as gold, copper, iron, aluminum, nonferrous metals, rare metals, etc.), cement building materials, coal slurry power plants, chemical plants, ceramic coatings, quartz sand, silica sand plants Ball mill equipment.

　　The Process Line of Production

　　Rotary cut steel ball production process

　　Inspection of raw materials → Heating of intermediate frequency furnace → Spinning into balls → Quenching treatment → Tempering treatment → Inspection → Packaging

　　Forging steel ball production process

　　Inspection of raw materials → feeding → intermediate frequency furnace heating → forging (rolling forging) into ball

　　Chemical Elements

Spec.	C	Si	Mn	S	P	Cr	Ni	Cu
20-150mm	0.5-0.9	0.17-0.37	0.7-1.2	< 0.035	< 0.035	<1	< 0.25	< 0.25

　　Mechanical Property

Steel ball diameter （MM）	A type material			Type B material			C type material			D type material
Steel ball diameter （MM）	Surface hardness	Inner hardness	Impact value	Surface hardness	Inner hardness	Impact value	Surface hardness	Inner hardness	Impact value	Surface hardness	Inner hardness	Impact value
φ25	60-65	58-63	≥12J/CM2
φ30	60-65	55-60	≥12J/CM2
φ35	60-65	55-60	≥12J/CM2
φ40	60-65	55-63	≥12J/CM2	60-65	60-65	≥12J/CM2
φ50	60-65	45-50	≥12J/CM2	60-65	60-65	≥12J/CM2
φ60	60-65	42-47	≥12J/CM2	60-65	60-65	≥12J/CM2
φ70	60-65	40-45	≥12J/CM2	60-65	60-65	≥12J/CM2
φ75	60-65	40-45	≥12J/CM2	60-65	60-65	≥12J/CM2
φ80	60-65	37-42	≥12J/CM2	60-65	60-65	≥12J/CM2
φ90	60-65	37-42	≥12J/CM2	58-63	52-60	≥12J/CM2
φ100	58-63	37-42	≥12J/CM2	53-58	42-58	≥12J/CM2	58-62	58-60	≥14J/CM2	60-65	60-65	≥14J/CM2
φ110	55-63	35-40	≥12J/CM2	53-58	45-50	≥12J/CM2	58-62	58-60	≥14J/CM2	60-65	60-65	≥14J/CM2
φ120	55-63	35-40	≥12J/CM2	53-58	45-50	≥12J/CM2	55-62	58-60	≥14J/CM2	60-65	60-65	≥14J/CM2
φ125	50-55	35-40	≥12J/CM2	53-58	45-50	≥12J/CM2	55-62	52-58	≥14J/CM2	60-65	58-63	≥14J/CM2
φ130	50-55	35-40	≥12J/CM2	53-58	40-45	≥12J/CM2	55-58	50-55	≥14J/CM2	60-65	58-63	≥14J/CM2
φ140			≥12J/CM2	53-58	40-45	≥12J/CM2	55-58	45-55	≥14J/CM2	60-65	55-60	≥14J/CM2
φ150			≥12J/CM2	53-58	40-45	≥12J/CM2	55-58	40-45	≥14J/CM2	60-65	53-58	≥14J/CM2

　　Dimension Seres of Grinding Balls

NOMINAL DIAMETER(mm)(INS)

DIAMETRICAL TOLERANCE(mm)

APPOX AVERAGE WEIGHT PER BALL

AVERAGE NUMBER OF BALLS PER MT

20 4/5

25 1

30 11/4

40 11/2

-1

116

263

31250

15625

8620

3802

50 2

60 21/2

70 23/4

80 31/4

-1

513

888

1490

2104

1949

1126

671

475

90 33/4

100 4

110 41/2

120 5

130 51/4

140 51/2

150 6

-2

2996

4110

5070

7102

9030

11278

13872

334

243

183

141

111

　　Packaging: 1000kg ton bag or Tietong packaging (850-900KG)

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Grinding steel ball

Unbreakable forged steel ball

Oriental Casting and Forging Co., Ltd.

Tel：+86-531-83207968\83318289

Mr. Hou：+86-18954519298\+86-15764168666

Fax：+86-531-83318289
E-mail：sales@grindingballs.net.cn
Add：Zhangqiu, Shadong, China

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