High Hardness Forged and Cast Grinding Steel Balls for Mining Used
Specification:
  1) No deformation
  2) High hardness Good wear resistant
  3) Size:Dia20mm-150mm
  4) Breakage<1%
  5) Certification: ISO9001,SGS.

Grinding ball details
  a. Grinding steel ball material:
  The high quality round steel.
  b. Grinding steel ball application :
  1) CEMENTPLANTS,
  2) Metal mining in mines
  3) power stations
  4) Chemical engineering
  c.Package:
  Steel drum (800-900kg per drum) or flexible container bag (1000kg per bag)
  d.Chemcial Elements and Hardness
Material  |   			Chemical elements | Hardness | |||||
| C | Si | Mn | S | P | Cr | HRC  |   		|
| Special Cr1 | 2.0-3.0 | <1.0 | 0.5-2.0 | ≤0.06 | ≤0.08 | >20 | 58-64 | 
| Special Cr2 | 2.0-3.0 | <1.0 | 0.5-2.0 | ≤0.06 | ≤0.08 | >15 | 58-64 | 
| High Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≤0.06 | ≤0.08 | >10 | 58-62 | 
| Medium Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≤0.06 | ≤0.08 | ≥5 | 45-48 | 
| Low Cr | 2.2-3.4 | ≤1.2 | 0.5-1.5 | ≤0.06 | ≤0.08 | 1.0-1.5 | 42-46 | 
Physical Property & Microstructure  |   		|||||
| Name | HRC | Ak(J/cm 2 ) | Microstructure | Times of Falling Balls | |
| Low Cr Balls | ≥45 | ≥2.5 | P+C | ≥10000 | |
| Medium Cr Balls | ≥48 | ≥3.0 | P+C | ≤Φ80 | ≥15000 | 
| ≥Φ80 | ≥10000 | ||||
| High Cr Balls | ≥58 | ≥4 | M+C+A | ≤Φ80 | ≥15000 | 
| ≥Φ80 | ≥10000 | ||||
| M-Martensite P-Pearliet C-Carbide A-Austenite | |||||
Size(mm)  |   			Weight(kg/pc) | Quantity(pc/t) | Size(mm) | Weight(kg/pc) | Quantity(pc/t) | |
| Φ30 | 0.11 | 9091 | Φ90 | 2.90 | 345 | |
| Φ40 | 0.25 | 3891 | Φ100 | 4.00 | 250 | |
| Φ50 | 0.50 | 2000 | Φ110 | 5.30 | 188 | |
| Φ60 | 0.86 | 1153 | Φ120 | 6.80 | 147 | |
| Φ70 | 1.37 | 729 | Φ130 | 7.70 | 129 | |
| Φ80 | 2.05 | 487 | Φ140 | 8.74 | 114 |   		
  
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  Because we know that good service and products cost effective is the most important magic weapon of maintaince of the old customer.
  
  Because we know that to look for a new customer is far difficult than maintaince old customer.
  
  With a cooperation win all life cooperation.
