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Low chrome grinding balls

Capacity : 4000t/m

Raw materials : steel

Application : ball mill


1. Size: Diameter. 10mm-140mm
2. Material: high/medium/low chrome alloyed
Low Chrome: Cr=1-3%,Medium Chrome: Cr=3-9%High Chrome: 15-23% Super High Chrome: Cr=10-13%
3. Characteristics: high hardness, good wear resistant, low breakage, no deformation.
4. Hardness: 45-65HRC; Breakage rate ≤1%; Drop times≥10,000.00
5. Application: cement, metallurgy, mining, electric power, chemical and magnets industries.


Ball Diameter(mm)
Φ10 Φ12.7 Φ15 Φ17 Φ20 Φ25 Φ30 Φ40 Φ50
Φ60 Φ70 Φ80 Φ90 Φ100 Φ110 Φ120 Φ125 Φ130
Chemical Coposition
ZQCr2 C Si Mn Cr Mo P S
2.2-3.5 0.3-1.4 0.2-1.5 0.3-3.0 ≦1.0 ≦0.15 ≦0.15
Properties and Microstructure
Designation HRC Impact Value(J/cm²) Microstructure Times of  Falling Balls
ZQCr2 ≧46 ≧1.5 P+C ≧15000


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