Brand Name : DRAGON STEEL BALLS
Model Number : 45# 60Mn B2 B3 Low Mid high Cr
Certification : CE,ISO
Place of Origin : CHINA
MOQ : 1 ton
Price : Negotiable
Payment Terms : L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability : 3000 tons / Month
Delivery Time : 3-7 work days/ 25 tons
Packaging Details : Container bags ,steel drums
Keyword : Forged Steel Ball
Advantage : High Wear Resistant
Size : 20mm-150mm
Production Process : Hot Rolling Forging Casting
Usagae : Mining,Cement plant,Power Station
Port : Tianjin/Qingdao/Shanghai
Material : Round Steel, Steel Iron
Tolerance : +-1mm,+-2mm
Breakage : <1%
Hardness : 58-63
20mm-150mm Forged Grinding Balls Cast Iron Balls Cement Grinding Balls
1. Cement Grinding balls is used in ball mill for mining,cement plant ,power plant and industry.
① Mining ( Gold, copper, iron ore )
② Cement plant
③ Coal mill
④ Sag mill
⑤ Industry
⑥ All the ball mill or rods mill machine
2. Dragon balls main product & Dragon balls classifications :
Forged ball
Cast ball
Cylpebs
Hot rolling ball
Main Product | Classification |
Cast Iron Ball | Low Cr,Medium Cr,High Cr |
Forged Ball | C45,60Mn,B2,B3 |
Hot Rolling Ball | C45,60Mn,B2,B3 |
Cylpebs | Low Cr,Medium Cr,High Cr |
Grinding Rods | C45,60Mn,B2,B3 |
Liners | Mn13Cr2,High Chrome |
3. Forged Steel Balls mining size and material
Forged ball 20mm-150mm
Cast balls 12mm-150mm
Cylpebs 6×6-50×60
Hot Rolling Ball 20mm-40mm
4. Forged Steel Balls Chemical elements
Forged ball ,hot rolling balls chemical elements
Material |
Chemical Composition |
C45 |
C:0.42-0.5,Si:0.17-0.37,Mn:0.5-0.8,Cr:≤0.25, P:≤0.035, S:≤0.035, Ni:≤0.25, Cu:≤0.25
|
60Mn |
C:0.55-0.65, Si:0.17-0.37, Mn:0.7-1.0, Cr:≤0.25, P:<0.04, S:<0.04, Ni:≤0.3, Cu:≤0.25
|
B2 |
C:0.72-0.85, Si:0.17-0.37, Mn:0.7-1.0, Cr:0.4-0.6, P:≤0.025, S:≤0.025, Ni:≤0.02, Cu:≤0.02
|
B3 |
C:0.58-0.66, Si:1.3-1.9, Mn:0.65-0.8, Cr:0.7-0.9, P:≤0.025, S:≤0.025, Ni:≤0.02, Cu:≤0.02
|
Material | Chemical Composition | |||||||
C | Si | Mn | Cr | P | S | Ni | Cu | |
C45 |
0.42-0.5 |
0.17-0.37 |
0.5-0.8 |
≤0.25 |
≤0.035 |
≤0.035 |
≤0.25 |
≤0.25 |
60Mn |
0.55-0.65 |
0.17-0.37 |
0.7-1.0 |
≤0.25 |
<0.04 |
<0.04 |
≤0.3 |
≤0.25 |
B2 |
0.72-0.85 |
0.17-0.37 |
0.7-1.0 |
0.4-0.6 |
≤0.025 |
≤0.025 |
≤0.02 |
≤0.02 |
B3 |
0.58-0.66 |
1.3-1.9 |
0.65-0.8 |
0.7-0.9 |
≤0.025 |
≤0.025 |
≤0.02 |
≤0.02 |
Cast Ball ,Cylpebs chemical elements
Material | Chemical Composition |
Low Cr | C:2.2-3.4, Si:≤1.2, Mn:0.5-1.5, P:≤0.06, S:≤0.06, Cr:1.0-1.5 |
Medium Cr | C:2.0-3.2, Si:<1.0, Mn:0.5-2.5, P:≤0.06, S:≤0.06, Cr:≥5 |
High Cr | C:2.0-3.2, Si:<1.0, Mn:0.5-2.5, P:≤0.06, S:≤0.06, Cr:≥10 |
Material | C | Si | Mn | Cr | P | S |
Low Cr | 2.2-3.4 | ≤1.2 | 0.5-1.5 | 1.0-1.5 | ≤0.06 | ≤0.06 |
Medium Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≥5 | ≤0.06 | ≤0.06 |
High Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≥10 | ≤0.06 | ≤0.06 |
5. Grinding balls Hardness
Forged ball ,hot rolling balls hardness
Size |
C45 |
60Mn |
B2 |
B3 |
20mm | 55-58 | 58-62 | 60-64 | 62-65 |
30mm | 55-58 | 58-62 | 60-64 | 62-65 |
40mm | 55-58 | 58-62 | 60-64 | 62-65 |
50mm | 55-58 | 58-62 | 60-64 | 62-65 |
60mm | 55-58 | 58-62 | 60-64 | 62-65 |
70mm | 53-56 | 58-62 | 60-64 | 61-63 |
80mm | 53-56 | 58-62 | 59-63 | 60-65 |
90mm | 50-55 | 58-62 | 57-61 | 60-65 |
100mm | 48-52 | 57-61 | 56-60 | 60-65 |
110mm | 48-52 | 57-61 | 55-60 | 58-64 |
120mm | 48-52 | 57-61 | 55-60 | 56-63 |
130mm | 48-52 | 57-61 | 55-60 | 56-63 |
140mm | 48-42 | 57-61 | 55-60 | 56-63 |
150mm | 48-52 | 57-61 | 55-60 | 56-63 |
Cast ball ,cylpebs hardness
Type | Low Cr | Medium Cr | High Cr |
20mm-150mm | 45-50 | 48-55 | 58-63 |
6. Grinding Balls Specifications
Diameter (mm) | Diameter Tolerance (mm) | Approx Weight of per ball(kg) | Average numbers per ton |
20 | +1,-0.5 | 0.033 | 30303 |
30 | +2,-1 | 0.11 | 9090 |
40 | +2,-1 | 0.261 | 3831 |
50 | +2,-1 | 0.512 | 1961 |
60 | +2,-1 | 0.883 | 1132 |
70 | +3,-1.5 | 1.402 | 713 |
80 | +3,-1.5 | 2.092 | 478 |
90 | +3,-1.5 | 2.98 | 335 |
100 | +3,-1.5 | 1.087 | 244 |
110 | +3,-1.5 | 5.44 | 183 |
120 | +3,-1.5 | 7.062 | 141 |
7. Grinding balls Production process
Forged balls are forged by air hammer after being heated by electric furnace.
Cast Balls and cylpebs are melted in electric furnace and poured into moulds after scientific proportioning. High chromium balls and cylpebs are also processed by oil quenching.
8. The difference of the forged ball and cast ball
① Different production line
② Different raw material
③ Different chemical element
④ Different core hardness and core hardness
9. How to choose the material
① According to the different customer need and usage.
② According to the ball mill size, dry grinding or wet grinding. We can recommend you the most suitable products.
10. Quality Control
① Factory Test
Grinding cylpebs test is an very important step. Real-time detection will be carried out in the production process. Cylpebs produced in each shift will be sampled in large quantities and tested for size, hardness, chemical composition, drop test, core pulling and impact value to ensure the quality of cylpebs
② The third party test
According to the customer different demand, cylpebs can be tested by any third party.
20mm - 150mm Cement Grinding Balls High Precision +-1mm / +-2mm Tolerance Images |