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Cast steel ball | chromium containing steel ball | high chromium steel ball

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High chromium steel ball is the most important grinding body in ball mill, which is called grinding steel ball abroad.


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High chromium steel balls are produced by medium frequency electric furnace melting, metal mold or sand mold casting. Therefore, domestic wear-resistant material manufacturers are often called high chromium alloy casting balls. Steel balls with chromium content ≥ 10.0% and carbon content between 1.80% - 3.20% are high chromium balls. The national standard requires that the hardness (HRC) of high chromium balls must be ≥ 58 degrees. If this hardness is reached, the high chromium balls must be heat treated and quenched. There are many quenching methods for high chromium balls at home and abroad, such as oil quenching, air quenching, water solution and so on. If the test hardness (HRC) is less than 54 degrees, it indicates that the hardness of high chromium balls is insufficient or has not been quenched at all.

High chromium steel balls are widely used in metallurgical mines, cement building materials, thermal power generation, flue gas desulfurization, aerated concrete, magnetic materials, chemical industry, coal water slurry, pellet, slag, ultra-fine powder, fly ash, calcium carbonate, quartz sand and other industries.

Details for different kinds of steel ball

45#casting steel ball C(%) Si(%) Mn(%) Cr(%) Cu(%) Mo(%) P(%) S(%)
0.42-0.50 0.17-0.37 0.5-0.8 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035
A commonly used forged steel ball. Widely used in large-scale ball mills such as mineral processing, power plants, steel mills, chemical plants, etc. The diameter range is 20-150mm, and it can also be customized according to customer requirements.
60 casting manganese steel ball C(%) Si(%) Mn(%) Cr(%) Cu(%) Mo(%) P(%) S(%)
0.57-0.65 0.17-0.37 0.7-1 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035
This steel ball has the characteristics of high hardness and corrosion resistance.Mainly used in ball mills,
65 casting manganese steel ball C(%) Si(%) Mn(%) Cr(%) Cu(%) Mo(%) P(%) S(%)
0.62-0.7 0.17-0.37 0.9-1 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035
This steel ball contains more manganese and has high toughness. Impact value ≥15J/CM^2  
B2 speical steel ball C(%) Si(%) Mn(%) Cr(%) Cu(%) Mo(%) P(%) S(%)
0.7-0.8 0.17-0.37 0.7-0.8 0.5-0.6 0-0.25 0-0.30 0-0.035 0-0.035
This wear-resistant steel ball has high volume hardness and low wear.      
B3 speical steel ball C(%) Si(%) Mn(%) Cr(%) Cu(%) Mo(%) P(%) S(%)
0.58-0.66 1.6-1.9 0.65-0.8 0.7-0.9 0-0.25 0-0.30 0-0.035 0-0.035
This type of new steel ball has good toughness and does not break.      

We have different size for optional, 10mm, 20mm, 30mm, 40mm, 50mm,....150mm. 

And we can also accept customized size according to your requirements.

 


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