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Help CenterHigh Hardness Forged Steel Ball for Ball Mill
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High hardness forged steel ball for ball mill
Chemical Composition (%)
C |
Si |
Mn |
Cr |
Ni |
Cu |
Mo |
S |
P |
3.3-3.9 |
2.2-3.0 |
2.3-2.9 |
1.0 |
0.2-0.5 |
0.4-1.0 |
0.3-0.8 |
0.03-0.05 |
0.03-0.05 |
Name |
HRC |
Ak(J/cm2) |
Metallographic Structure |
Falling Ball Impact Fatigue Life |
|
Austenite-Bainite Grinding Balls |
≥60 |
≥7 |
B+A+Carbide |
≤φ100 |
≥18000 |
≥φ100 |
≥15000 |
||||
2. Brief Introduction of Austenite-Bainite Grinding Balls
Austenite-bainite grinding ball is a kind of grinding ball, superior to the present widely used low-chromium ball, high-chromium ball, and variuos forged ball. The balls can be used in fields such as metallurgy mine, ore dressing,power coal-grinding and cement production , and are manufactured our company. Its product size is 60mm, 80mm, 100mm, 120mm, 130mm, and especially the biggest size of 150mm. Our annual output is about 50,000 tons for the balls.
3. Advantages of the grinding ball over the other balls presently used
3-1. High hardness and good wear-resistance: Microstructure of our grinding balls is the caibide-containing bainite and retained austenite, together with certain uniformly distributed spheroidal graphites.
3-2. Our austenite-bainite grinding balls present high surface hardness of HRC63 and good impact toughness of ak=7~10 J/cm2. This value is about 2~3 times of the low-chromium ball and the high-chromium balls.
3-3. Well-defined shape for our grinding balls: The balls are formed on an automatic productin line of the sand-coated iron mould, and then heat-treated on automatic line. the stable processing makes our formed balls be in well-defined shape, which is well kept even during the ball working. Then good efficiency can be obtained for the ball mill.
3-4. Light in weight for our grinding balls: More nodular graphite contained in our grinding balls results in a density of 7.3 t/m3, which is about 8% lower than that of the low-chromium balls, high-chromium ball and the forged balls (about 7.7t/m3). About 8% electric power can be saved for users due to a decrease in loading for the ball mill.
4. Production process
5. Third party testing reports
Packaging Details: Flexible container bags or steel brums
Delivery Detail: According to the order and client's instructions
1. Company Introduction
Chengde Rong Mao Steel Co., Ltd., built in the 1980s, is a large-scale casting foundry company that has produced hammerhead, grinding balls and other products for thirty years.
The company has 400 staff, including senior technical staff of 35 and its plant covers an area of 36,000 square meters
The balls, becoming more and more popular throughout the country, have good wear resistance and less crushing rate thanks to advanced production equipment, standard casting process, innovative heat treatment technology, scientific testing means and accurate chemical analysis report.
In 2007, the company successfully passed the ISO9001 and ISO14000. It stands out from the domestic foundry industry due to outstanding product quality and integrity of services and has become a principal member of China Foundry Association as well as successive years of provincial and city "Trustworthy" Company.
2. View Of Our Company
Trade manager: cn1513197664
QQ: 3328047203
Tel:+86 18511898793
Skype:tyc922
Wechat:18511898793
Send Inquiry to This Supplier
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