| Place of Origin: | CHINA |
|---|---|
| Brand Name: | JN |
| Certification: | SGS |
| Model Number: | 20mm-150mm |
| Minimum Order Quantity: | 1 TON |
| Price: | USD650/TON-USD800/TON |
| Packaging Details: | steel drum (800-900kg per drum) or flexible container bag ( 1000kg per bag) |
| Delivery Time: | 7-15 DAYS |
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram,Paypal |
| Supply Ability: | 500TONS PER MONTH |
| Product Name: | Grinding Steel Balls | Breakage Rate: | ≤1% |
|---|---|---|---|
| Microstructure: | M+C | Hardness: | HRC60-65 |
| Heat Treatment: | Quenching Tempering | Warranty: | 1 Year |
| High Light: | steel balls for ball mill,grinding media steel balls |
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Multi Hardness Forged Grinding Balls Metallurgical Selection In Mine Stable
20mm-150mm Ball Mill Forged Steel Balls Grinding Media Balls For Mill Or Cement
1) 60Mn, 65Mn Forged Grinding Balls and Rolled Grinding Balls (20mm to 150mm)
2) B2 Forged Grinding Balls and Rolled Grinding Balls (20mm to 150mm)
3) B3 Forged Grinding Balls and Rolled Grinding Balls (20mm to 150mm)
4) B4 Forged Grinding Balls and Rolled Grinding Balls (20mm to 150mm)
|
Product Name
|
Grinding Media Balls
|
|
Material
|
steel
|
|
Hardness
|
HRC 60-65
|
|
Breakage Rate
|
<1%
|
|
Loss roundness rate
|
<1%
|
|
Impact toughness
|
>12AK.j/cm^2
|
|
Microstructure
|
M+C
|
|
Heat treatment
|
quenching/tempering
|
|
Used
|
Industries of cement building material, metallurgical selection in mine, grinding coal
in power plant, chemical industry and machinery, etc. |
Specifications of our grinding balls as follows:
| PRODUCTS |
SURFACE HARDNESS |
CORE HARDNESS |
CHEMICAL COMPOSITION |
| 1) 60Mn Forged grinding ball | HRC58-65 | ≥HRC45 |
C: 0.52-0.65; Si: 0.15-0.37; Mn: 0.6-1.2; S & P: 0.04Max; Cr: 0.25Max |
| 2) B2 Forged grinding ball | HRC60-68 | ≥HRC55 |
C: 0.75-0.90; Si:0.17-0.37; Mn:0.7-0.9; P: 0.035 MAX; S: 0.035MAX; Cr:0.40-0.70. |
| 3) B3 Forged grinding ball | HRC60-68 | ≥HRC55 |
C:0.55-0.65; Si:0.2-0.37; Mn:0.75-0.9; Cr:0.85-1.2;S/P≤0.03; |
| 4) B4 Forged grinding ball | HRC60-68 | ≥HRC58 | C:0.58-0.66; Si:1.6-1.9; Mn:0.65-0.80; Cr:0.7-0.9; S/P≤0.03; |
| 5) High chrome cast grinding ball | HRC60-65 | ≥HRC58 |
Cr:11-27; C: 2.0-3.0; Si:1.0Max; Mn: 0.5-1.5; S & P:0.10Max; |
| 6) Low chrome cast grinding ball | HRC48-55 | ≥HRC46 |
Cr:1-3; C: 2.2-3.6; Si:1.0Max; Mn: 0.5-1.5; S & P:0.10Max; |
| 7) Medium chrome cast grinding ball | HRC55-63 | ≥HRC55 |
Cr:4-10; C: 2.2-3.6; Si:1.0Max; Mn: 0.5-1.5; S & P:0.10Max; |
Diameter, Diametrical tolerance, Weight, Impact toughness of our grinding balls
|
Nominal diameter (mm) |
Diametrical tolerance (mm) |
Weight of Single of grinding ball in average |
Number of piece of One ton grinding ball in average |
Impact toughness |
|
DIA 20MM DIA 25 MM DIA 30 MM DIA 40 MM DIA 50 MM |
+2 -1 |
32 64 110 263 513 |
31250 15625 9090 3802 1949 |
≥12 |
|
DIA 60 MM DIA 70 MM DIA 80 MM DIA 90 MM DIA 100 MM |
+3 -2 |
888 1410 2104 2996 4110
|
1126 709 475 333 243 |
|
|
DIA 110 MM DIA 120MM DIA 130 MM |
+4 -2 |
5457 7102 9030 |
182 140 110 |
|
|
DIA 140 MM DIA 150 MM |
+4 -3 |
11278 13871 |
88 72 |
