Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd
Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd 18 Years focus on development and production of grinding media Casting quality with strength, Forging glory with integrity
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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 |
Long-term cooperation is our goal with every customer:
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.