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1.Diameter tolerance and Length tolerance
Diameter(mm)
| Φ<30 | 30<Φ<60 | 60<Φ<80 | 80<Φ<100 | Φ>100 |
Diameter tolerance(mm) | +1,-1 | +1.5,-1 | +2,-1 | +2.5,-1 | +3,-1 |
2.Chemical composition
Name | Brand
| Chemical composition(%) | ||||||||
| C | Si | Mn | Cr | Mo | Cu | Ni | P | S | |
Chrome alloy casting iron ball
| ZQCr26 | 2.0-3.3 | 1.2max | 0.3-1.5 | >23.0-30.0 | 0-3.0 | 0-1.2 | 0-1.5 | ≤0.10 | ≤0.06 |
ZQCr20 | 2.0-3.3 | 1.2max | 0.3-1.5 | >18.0-23.0 | 0-3.0 | 0-1.2 | 0-1.5 | ≤0.10 | ≤0.06 | |
ZQCr15 | 2.0-3.3 | 1.2max | 0.3-1.5 | >14.0-18.0 | 0-3.0 | 0-1.2 | 0-1.5 | ≤0.10 | ≤0.06 | |
ZQCr12 | 2.0-3.3 | 1.2max | 0.3-1.5 | >10.0-14.0 | 0-3.0 | 0-1.2 | 0-1.5 | ≤0.10 | ≤0.06 | |
ZQCr8 | 2.1-3.3 | 2.2max | 0.3-1.5 | 7.0-10.0 | 0-1.0 | 0-0.8 | - | ≤0.10 | ≤0.06 | |
ZQCr5 | 2.1-3.3 | 1.5max | 0.3-1.5 | 4.0-6.0 | 0-1.0 | 0-0.8 | - | ≤0.10 | ≤0.10 | |
ZQCr2 | 2.1-3.6 | 1.5max | 0.3-1.5 | 1.0-3.0 | 0-1.0 | 0-0.8 | - | ≤0.10 | ≤0.10 |
3.Technical specification
Name | Brand | (mm) Diameter | (HRC) Hardness | Breakage rate | (J/cm²) Impact value | Drop times | Micro structure |
Chrome alloy casting iron ball
| ZQCr26 | 17-150 | >58 | <1% | >7 | ≥12000 | M+C |
ZQCr20 | 17-150 | >58 | <1% | >6 | ≥12000 | M+C | |
ZQCr15 | 17-150 | >58 | <1% | >5 | ≥12000 | M+C | |
ZQCr12 | 17-150 | >58 | <1% | >3.5 | ≥12000 | M+C | |
ZQCr8 | 17-150 | >55 | <1% | >3 | ≥12000 | M+C | |
ZQCr5 | 17-150 | >47 | <1% | >2 | ≥10000 | M+C | |
ZQCr2 | 17-150 | >45 | <1% | >1.5 | ≥8000 | P+C |
Production process of Chrome alloy casting iron ball
Raw material→Secientic proportioning→Electric furnace smelting→Assay before furnace→Mould forming→Polishing→Heat treatment→Packing
1.Bag:diameter17-150mm 1000kg/bag
2.Drum:diameter17-25mm 1000kg/drum
diameter30-50mm 950kg/drum
diameter60-70mm 900kg/drum
diameter80-90mm 850kg/drum
diameter100-150mm 800kg/drum
20feet container:25bags or 25-32drums
40feet container:27bags or27-34drums
We mainly produce grinding media in ball mill for many years. Jinan Huafu Forging Co., Ltd is located in Zhangqiu
City, Shandong Province, 45 Kilometers to the Jinan downtown, next to the 309 National Highway, enjoying
firsthand Information and convenient traffic. Our company covers 80000 square meters, with over 100 employees,
annual production capacity of 100000 tons and registered capital of seventy million yuan.
We mainly produces forged steel balls, cast iron balls, steel cylpebs, grinding rods, mill liners, steel, hammer heads, automatic production lines for steel balls & grinding rods and decorative wrought iron products.We have ability to
produce high quality and large quantity products.
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