Zhong wei casted grinding Steel Ball
ZW Cast Ball chemical composition and hardness:
1. Chemical Composition
| Name | Material | Chemical elements | Hardness |
| C | Si | Mn | S | P | Cr | HRC |
| Cast Iron Ball | Special cr1 | 2.0-3.0 | ＜1.0 | 0.5-2.0 | ≤0.06 | ≤0.06 | ＞20 | 60-65 |
| Special cr2 | 2.0-3.0 | ＜1.0 | 0.5-2.0 | ≤0.06 | ≤0.06 | ＞15 | 58-64 |
| High Cr | 2.0-3.2 | ＜1.0 | 0.5-2.5 | ≤0.06 | ≤0.06 | ＞10 | 58-63 |
| Medium Cr | 2.0-3.2 | ＜1.0 | 0.5-2.5 | ≤0.06 | ≤0.06 | ≥5 | 48-55 |
| Low Cr | 2.2-3.4 | ≤1.2 | 0.5-1.5 | ≤0.06 | ≤0.06 | 1.0-1.5 | 45-50 |
2. Hardness
| Name | Material | Chemical elements | Hardness |
| C | Si | Mn | S | P | Cr | HRC |
| Cast iron ball | Special cr1 | 2.0-3.0 | ＜1.0 | 0.5-2.0 | ≤0.06 | ≤0.06 | ＞20 | 60-65 |
| Special cr2 | 2.0-3.0 | ＜1.0 | 0.5-2.0 | ≤0.06 | ≤0.06 | ＞15 | 58-64 |
| High Cr | 2.0-3.2 | ＜1.0 | 0.5-2.5 | ≤0.06 | ≤0.06 | ＞10 | 58-63 |
| Medium Cr | 2.0-3.2 | ＜1.0 | 0.5-2.5 | ≤0.06 | ≤0.06 | ≥5 | 48-55 |
| Low Cr | 2.2-3.4 | ≤1.2 | 0.5-1.5 | ≤0.06 | ≤0.06 | 1.0-1.5 | 45-50 |
ZW cast ball types:
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.
Cast ball production 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.
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
Weight of Cast Iron Balls
| (mm) Nominal diameter | (mm) Diametrical Tolerance | （kg） Approx weight per ball | Average number per MT |
| 20 | +1，—0.5 | 0.033 | 30303 |
| 25 | +1，—0.5 | 0.064 | 15635 |
| 30 | +2.0，—1.0 | 0.11 | 9090 |
| 40 | +2.0，—1.0 | 0.261 | 3831 |
| 50 | +2.0，—1.0 | 0.510 | 1961 |
| 60 | +2.0，—1.0 | 0.883 | 1132 |
| 70 | +3.0，—1.5 | 1.402 | 713 |
| 80 | +3.0，—1.5 | 2.092 | 478 |
| 90 | +3.0，—1.5 | 2.98 | 335 |
| 100 | +3.0，—1.5 | 4.087 | 244 |
| 110 | +3.0，—1.5 | 5.44 | 183 |
| 120 | +3.0，—1.5 | 7.062 | 141 |
The grind rate of the cast balls when grinding the cement
FAQ
1. Can you provide samples for free?
Answer: Yes, Free Sample.
2. Are you a manufacturer or a trading company?
Answer: We are a manufacturer, and we have independent export qualification.
3. What kind of payment you can accept?
Answer: T/T , L/C, Paypal,Western Union
4. How about your quality control?
Answer: 100% check before delivery to ensure the products quality.
Looking for ideal Casted Steel Ball Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Zhong Wei Cast Ball are quality guaranteed. We are China Origin Factory of High Chrome Cast Ball. If you have any question, please feel free to contact us.
Mr. Steven