Active Member
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[China]
Address: Jinan City,Shandong Province,China
Contact name:Serena
Jinan Dragon Steel Balls Co.,Ltd |
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High Chrome Grinding Media Cast Iron Ball Casting Ball Grinding
Media Balls
1. Casting Steel Balls specifications
Diameter | Diameter Tolerance | 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 |
2. Casting Steel Balls characteristics and advantages
① Size 12mm-150mm
② Chemical elements
| 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 |
③ Hardness
| Type | Low Cr | Medium Cr | High Cr |
| 20mm-150mm | 45-50 | 48-55 | 58-63 |
④ Advantages
High hardness
Good wear resistant
Low Breakage
4. Production process
Casting Steel Balls are melted in electric furnace and poured into
moulds after scientific proportioning. High chromium cast balls are
also processed by oil quenching.
5. Quality Control
① Factory test
Cast 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, cast iron balls can be
tested by any third party.
6. Packing
Cast balls are usually packed in container bags and steel
drums, it can also be customized according to different customer
needs.
7. Company Introduction
Dragon balls factory are established in 2001.Up to now, we have
cooperated with many large power plants in China for more than 10
years. Since 2007, Dragon balls has set up its own foreign trade
team, and began to show itself to the world. The forged ball, cast
ball and cylpebs are widely praised by friends at home and abroad.
Dragon balls has a very mature technology research and development
team and sales team, we are constantly expanding the factory and
team every year, in order to meet the growing demand at home and
abroad.
Steel balls are a long-term business.
We are willing to do it all the time because if we know someone, we
will become permanent friends.
We can always do this for so many years because our quality
supports our long-term cooperation and friendship.
The quality of every steel ball is crucial because it is a strong
bridge that connects us.
