Jinan Dragon Steel Balls Co.,Ltd
Jinan Dragon Steel Balls Co.,Ltd 19 Years Grinding Media Balls Professional Manufacturer
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Ball Mill Cast Iron Grinding Balls High Chrome Casting Balls Low Chrome Balls
1. Cast Iron Ball is popular grinidng media for ball mill, please tell your size, chrome content or hardness, we will give the most competition qutation ASAP.
Following is the detail:
2. Classification
According to the different chemical elements , Cast balls can be divided into Low Cr,Medium Cr and High Cr. At present, the above materials are widely used all over the world, that’s the conventional materials, if there are special needs, can be customized.
3. Manufacturing process
Casting balls are melted in electric furnace and poured into moulds after scientific proportioning. High chromium cast balls are also processed by oil quenching.
4. Detail Specifications
① Chemical Composition
|
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
|
② Hardness
|
Type
|
Low Cr
|
Medium Cr
|
High Cr
|
|
20mm-150mm
|
45-50 |
48-55 |
58-63 |
③ Dragon Balls Weight
| Size(mm) | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 |
| Weight(kg) | 0.033 | 0.111 | 0.261 | 0.512 | 0.883 | 1.402 | 2.092 | 2.98 | 1.087 | 5.44 | 7.062 | 9.008 | 11.25 | 13.83 |
5. Test
① Factory test
Casting balls test is an very important step. Real-time detection will be carried out in the production process. Balls 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 steel balls.
② The third party test
According to the customer different demand, casting balls can be tested by any third party.
6. Packing
Casting balls are usually packed in container bags and steel drums, it can also be customized according to different customer needs.
A: We are factory.
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
A: 30% T/T in advance ,balance before shippment