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Grinding forged steel balls
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Grinding forged steel balls

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Product description
Parameters
  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
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

 

+2

-1

32

64

116

263

31250

15625

8620

3802

50    2

60    21/2

70    23/4

80    31/4

 

+3

-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

 

 

+4

-2

2996

4110

5070

7102

9030

11278

13872

334

243

183

141

111

89

72

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