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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Jinan Zhongwei is a leading producer of high chrome and forged Grinding Media Balls
supplied primarily to the platinum, copper and gold mining industries.
Grinding media Ball ( Forged Grinding Media Ball and Cast Grinding Media Ball )
As one of the leading grinding steel balls specialists in China, we Jinan Zhongwei can certainly assist you in buying grinding media balls that suit you company's paticular needs.
Type and Chemical Composition
1> Forged Grinding media Ball
| Material | C | Mn | Si | Cr | S | P |
| 50Mn | 0.48-0.56 | 0.70-1.0 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 |
| 60Mn | 0.57-0.65 | 0.70-1.0 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 |
| 65Mn | 0.60-0.70 | 0.90-1.2 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 |
| B2 | 0.70-0.85 | 0.70-0.80 | 0.17-0.37 | 0.2-0.7 | ≤0.03 | ≤0.03 |
| 75SiMn | 0.70-0.90 | 0.70-1.20 | 0.4-0.8 | ≤0.25 | ≤0.03 | ≤0.03 |
| Wear-resistant Alloy | 0.50-0.65 | 0.4-1.0 | 1.4-1.8 | 0.9-1.2 | ≤0.03 | ≤0.03 |
2> Cast Grinding media Ball
|
Material |
C |
Si |
Cr |
Mn |
S |
P |
| Cr-22-32% | 2.0-2.8 | ≤1.0 | 22-32 | 0.5-2.0 | ≤0.06 | ≤0.08 |
| Cr-17-22% | 2.0-2.8 | ≤1.0 | 17-22 | 0.5-2.0 | ≤0.06 | ≤0.08 |
| Cr-15-17% | 2.2-3.0 | ≤1.0 | 15-17 | 0.5-2.0 | ≤0.06 | ≤0.08 |
| Cr-11-14% | 2.2-3.2 | ≤1.0 | 11-14 | 0.5-2.5 | ≤0.06 | ≤0.08 |
| Cr-5-10% | 2.1-3.2 | ≤1.2 | 5-10 | 0.5-1.5 | ≤0.06 | ≤0.08 |
| Cr-1.5-3.% | 2.2-3.5 | ≤1.2 | 1.5-3.0 | 0.5-1.5 | ≤0.06 | ≤0.08 |
Physical Property
1> Forged Grinding media Ball
| Material | Impact Test(Ak.J/cm²) | Endurance Test Times(5m/T) | Surface Hardness (Φ25mm- Φ60mm) | Core Hardness (Φ25mm- Φ60mm) | Surface Hardness (Φ70mm- Φ100mm) | Core Hardness (Φ70mm- Φ100mm) | Breakage |
| 50Mn | ≥12 | ≥10000 | ≥56 | ≥35 | ≥56 | ≥28 | <1% |
| 60Mn | ≥13 | ≥10000 | ≥58 | ≥38 | ≥58 | ≥29 | <1% |
| 65Mn | ≥15 | ≥12000 | ≥60 | ≥42 | ≥60 | ≥30 | <1% |
| B2 | ≥17 | ≥12000 | ≥60 | ≥52 | ≥60 | ≥50 | <1% |
| 75SiMn | ≥16 | ≥12000 | ≥60 | ≥50 | ≥60 | ≥48 | <1% |
| Wear-resistant Alloy | ≥17 | ≥12000 | ≥60 | ≥54 | ≥60 | ≥52 | <1% |
2> Cast Grinding media Ball
|
Material
|
Impact Test Ak.J/cm |
Endurance Test times (5m) | Hardness (HRC) | |||
| Diam25-60mm | Diam70-100mm | |||||
| Quenching | Unquenching | Quenching | Unquench ing | |||
| Cr-22-32% | ≥4 | ≥10000 | ≥60 | ≥49 | ≥60 | ≥48 |
| Cr-17-22% | ≥4 | ≥10000 | ≥60 | ≥49 | ≥60 | ≥48 |
| Cr-15-17% | ≥4 | ≥10000 | ≥60 | ≥49 | ≥58 | ≥48 |
| Cr-11-14% | ≥3 | ≥10000 | ≥58 | ≥49 | ≥56 | ≥48 |
| Cr-5-10% | ≥3 | ≥8000 | - | ≥48 | - | ≥48 |
| Cr-1.5-3.% | ≥2 | ≥8000 | - | ≥48 | - | ≥45 |
Size and Weight
| Norminal Diameter | Diametrical Tolerance(mm) | Approx Weight of Single Ball(kg) | Average Number of One MT |
| 20mm/0.75'' | +1,-0.5 | 0.033 | 30303 |
| 25mm/1'' | +1,-0.5 | 0.064 | 15625 |
| 30mm/1.25'' | +2,-1 | 0.11 | 9090 |
| 40mm/1.5'' | +2,-1 | 0.261 | 3831 |
| 50mm/2'' | +2,-1 | 0.51 | 1961 |
| 60mm/2.5'' | +2,-1 | 0.883 | 1132 |
| 70mm/2.75'' | +3,-1.5 | 1.402 | 713 |
| 80mm/3.25'' | +3,-1.5 | 2.092 | 478 |
| 90mm/3.5 | +3,-1.5 | 2.98 | 335 |
| 100mm/4'' | +3,-1.5 | 4.087 | 244 |
| 110mm/4.5'' | +3,-1.5 | 5.44 | 183 |
| 120mm/4.75'' | +3,-1.5 |
Grinding Media Balls Packaging
Big bags (1000Kg Per Bag )
Steel drums ( 850~920Kg Per Drum )
Grinding Media Balls Applied Fields
1. Mining
2. Cement Plants
3. Chemical Industries
4. Power Stations
Shipping and delivery
Port of loading:Qingdao Port,China
Delivery time : Normally 2-3 weeks after down payment received.
Partial shippment allowed
FAQ
· Payment terms : T/T (30% DP,balance against copy of B/L.; L/C
· Samples : Free samples are provided for test before trial order
· MOQ : 1 Ton
For more information about our products ,Pls feel free to contact us.
TEL: +86 15588873848
Contact : Jessise