Jinan Huafu Forging Joint-Stock Co.,ltd.
Grinding Media Manufacturer
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Chrome Alloy Grinding Media Balls /Cast Iron Grinding Balls/Ball Mill Stell Balls
COMPANY ENVIOMENT
PRODUCTS INTRODUCTION
High Chrome casting steel ball
High chrome casting grinding ball, chrome concentration is 10%－24%, hardness ≥HRC58. High chrome casting grinding ball is one of the wearable steel ball with better performance-price-ratio, and its extensive usage has won itself a high share in the market.
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Chemical Composition | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) |
| 2.0-3.3 | ≤1.2 | 0.3-1.5 | 10.0-24.0 | ≤1.2 | ≤3.0 | ≤0.10 | ≤0.10 |
Medium chrome casting steel ball
Middle chrome grinding balls chrome concentration is 4-6%, hardness ≥ HRC 48, Middle chrome grinding ball have a better performance than complex alloy ball.
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Chemical Composition | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) |
| 2.1-3.6 | ≤1.5 | 0.3-1.5 | 4.0-6.0 | ≤0.80 | ≤1.0 | ≤0.10 | ≤0.10 |
Low chrome casting steel ball
Chrome Concentration is 1-3%, hardness ≥ HRC 45, this steel ball is called low chrome grinding balls, which is made by smelting in intermediate frequency electric furnace, metal mould or sand casting process. It applies to metallurgic mines and slag industries where no high grinding accuracy or wearability is required.
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Chemical Composition | C(%) | Si(%) | Mn(%) | Cr(%) | Cu(%) | Mo(%) | P(%) | S(%) |
| 2.1-3.6 | ≤1.5 | 0.3-1.5 | 1.0-3.0 | ≤0.80 | ≤1.0 | ≤0.10 | ≤0.10 |
Production process of casting steel ball
Iron---Add Alloyed Material---Furnace Heating---Testing the Chemical Composition---Pouring to the Model---Out of the Model---Polishing---Quenching---Cooling---Tempering---finished steel ball testing---Packaging
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