Main Products: Grinding Ball ,Steel Ball ,Steel Bar
casting balls of high chromium dia 55mm
USD $750 - $1,200 /Metric Ton
Min.Order:10 Metric Tons
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Jinan Jinchi Steel Ball Co., Ltd.
Business Type: Manufacturer,Trading Company
Shandong ChinaMain Products: Grinding Ball ,Steel Ball ,Steel BarProduct Details
casting balls of high chromium
Performance
1.Size:20-150mm
2.HRC:55-65
3.Lower wear rate longer lasting chromuim
4.ISO9001:2008
The process line of production
RAW MATERIAL→SCIENTIFIC PROPORTIONING → ELECTRIC FURNACE SMELTING → ASSAY BEFORE FURNACE → MOULD FORMING → POLISHING → HEAT TREATMENT → PACKING → TRANSPORTATION
Applied fields
Industries of cement building material,metallurgical selection in mine,grinding coal in power plant,chemical industry and machinery,etc.
1. Chemical composition:
Item | Designation | C | Si | Mn | Cr | S | P | Mo |
High-Cr-Ball | JCCr20 | 2.0-3.2 | ≤1.0 | ≤1.5 | 19-22 | ≤0.08 | ≤0.06 | ≤1.0 |
JCCr17 | 2.0-3.2 | ≤1.0 | ≤1.5 | 15-18 | ≤0.08 | ≤0.06 | ≤1.0 | |
JCCr11 | 2.0-3.2 | ≤1.0 | ≤1.5 | 10-13 | ≤0.08 | ≤0.06 | ≤1.0 | |
Low-Cr-Ball | JCCr2-6 | 2.0-3.5 | ≤1.0 | ≤1.5 | 1.5-3.5 | ≤0.08 | ≤0.06 | ≤1.0 |
2. Properties & Microstructure
Item | Designation | Hardness(HRC) | Impact Toughness ak(j/cm2) | Microstructure | Service Life (Times of falling) | Wear Rate | Breackage | |
Heat treatment | Cast |
|
|
|
|
| ||
High-Cr-Ball | JCCr20 | 55-65 | ≥50 | ≥4.0 | M+C | ≥8000 | ≤25 | ≤0.5 |
JCCr17 | 55-65 | ≥50 | ≥4.0 | |||||
JCCr11 | 55-65 | ≥50 | ≥4.0 | ≤30 | ||||
Low-Cr-Ball | JCCr2-6 |
| ≥45 | ≥2.5 | P+C | ≥5000 |
| ≤1.0 |
Type and Chemical Composition of Chrome Grinding Ball
Name
|
Material |
C |
Si |
Cr |
Mn |
S |
P |
JC-7 | Cr-22-32% | 2.0-2.8 | ≤1.0 | 22-32 | 0.5-2.0 | ≤0.06 | ≤0.08 |
JC -8 | Cr-17-22% | 2.0-2.8 | ≤1.0 | 17-22 | 0.5-2.0 | ≤0.06 | ≤0.08 |
JC -9 | Cr-15-17% | 2.2-3.0 | ≤1.0 | 15-17 | 0.5-2.0 | ≤0.06 | ≤0.08 |
JC-10 | Cr-11-14% | 2.2-3.2 | ≤1.0 | 11-14 | 0.5-2.5 | ≤0.06 | ≤0.08 |
JC-11 | Cr-5-10% | 2.1-3.2 | ≤1.2 | 5-10 | 0.5-1.5 | ≤0.06 | ≤0.08 |
JC-12 | Cr-1.5-3.% | 2.2-3.5 | ≤1.2 | 1.5-3.0 | 0.5-1.5 | ≤0.06 | ≤0.08 |
Payment term:L/C or T/T
Package:steel drum or flexible container bags
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