| Model: | DT2 |
|---|---|
| Brand: | DT2 |
| Origin: | Made In China |
| Category: | Metallurgy , Mining & Energy / Metallurgy & Mining / Non-metallic Mineral Products |
| Label: | grinding balls , steel balls , cast steel balls |
| Price: |
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| Min. Order: | 10 ton |
| Live Chat: | Last Online:27 Mar, 2017 |
Breif Description:
Size: 20-150mm Inspection: SGS/BV/TUV
Origin: Shandong Province, China
| 1) 60Mn Forged grinding ball | HRC58-65 | ≥HRC44 |
C: 0.52-0.65; Si: 0.15-0.37; Mn: 0.6-1.2; S & P: 0.04Max; Cr: 0.25Max |
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| 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. |
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| 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; | |||||
| 3) High chrome cast grinding ball | HRC58-65 | ≥HRC55 |
Cr:11-27; C: 2.0-3.0; Si:1.0Max; Mn: 0.5-1.5; S & P:0.10Max; |
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| 4) 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; |
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| 5) Medium chrome cast grinding ball | HRC50-60 | ≥HRC48 |
Cr:4-10; C: 2.2-3.6; Si:1.0Max; Mn: 0.5-1.5; S & P:0.10Max; |
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|
DIA 20 DIA 25 DIA 30 DIA 40 DIA 50 |
+2 -1 |
32 64 110 263 513 |
31250 15625 9090 3802 1949 |
≥12 | ||||
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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 |
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|
DIA 60 DIA 70 DIA 80 DIA 90 DIA 100 |
+3 -2 |
888 1410 2104 2996 4110
|
1126 709 475 333 243 |
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DIA 110 DIA 120 DIA 130 |
+4 -2 |
5457 7102 9030 |
182 140 110 |
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DIA 140 DIA 150 |
+4 -3 |
11278 13871 |
88 72 |
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Feature:
1) High Hardness: The surface hardness of forged and rolling balls is to 60-65 HRC and volume hardness is to 60-63 HRC
2) High Impact Toughness: The impact toughness is more than 12 J/cm2;
3) Low Broken Rate: The actual broken rate is not higher than 1%;
4) Even Wear-resistance: The loss of ball round rate is 50-300 g/ton.
The production process of the forged grinding balls
1). Raw material:
All the material is qualified with certificate and made in the Chinese largest steel production enterprise.
2). Different steel specifications ccording to the clients's requirements.
Main Steel Material :C45 Steel;60Mn Steel;B2 Steel
3). Steel Cutting:
the steel bars should be cut into small pieces according to the size of steel balls required by the order.
4). Heating:
we use the electric furnace instead of the traditional coal stove, the biggest advantage is that all the steel bars can accept the most approriate temperature during the heating progress. It affect the hardness and toughness directly.
5). Hammer forging:
The raw material is forged to a certain deformation by the air hammer, when the compression ratio increased, the micro-structure become more compact so that the hardness and the toughness can be improved.
6). Heat treatment:
Both the water quenching heat treatment production line and our own temperature control technics are important.
We have mature production technicians responsible for the heat treatment process as we know this process affect the grinding balls performance directly.
7). Quality Control.
Raw material test before production
Hardness test Drop Test Impact Test Core pulling Test after production
SGS test before delivery
Certificate: ISO 9001:2008
Shipping:
1.Port of Loading: Qingdao Port,China
2.Partial shippment allowed
3.By DHL/TNT express for samples order.Door to door to delivery;
4.Appointed freight forwarder by customers is acceptable
Our Services:
1. Free samples for your test before orders;
2. Soonest delivery time ;
3. Cooperate with many famours shipping companies,and sent the goods to your port safe and in time;
4. Any feedback after sales would get our soonest reply.
WE LOOK FORWARD TO THE OPPORTUNITY TO DISCUSS HOW WE CAN BECOME A PARTNER IN YOUR SUPPLY CHAIN SOLUTION .
