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- Size: 9.99
- Place of Origin: Zhangqiu
- Brand Name: Jinan Zhongwei
- Model Number: 45# 60Mn B2 B3 Low Medium High Chrome
- Weight: 1000.000 kg
- :
Established in 2000, We Jinan Zhongwei casting and forging grinding ball Co.,Ltd, are leading manufacturer and professional exporter of grinding media balls in China. with the annual output of 50,000 to 70,000 metric tons. Our products grinding media balls are mainly exported to more than 20 countries and regions in the world, such as Japan, Korea, South Africa, Zambia, Malaysia, Philippines, Indonesia, Mongolia, Australia, UAE, Chile etc.
Our company is located in Zhangqiu city, Shandong Province, which is provided with superior geographical position and convenient transportation. It is only 50 kilometers' distance to Jinan Airport and 260 kilometers' distance to Qingdao port. Our company covers an area of 15,000 square meters, with two million registered capital. And there are 150 existing staff, including 21 technicians.
Our main products are forging grinding steel balls, and (high,low,medium) chrome alloyed casting iron balls, casting cylpebs, grinding rods. Relying on the advanced equipment and production technology, our grinding balls have the advantages of high hardness, good wear resistance, no breakage and even wearing. They are mainly applied to various mines, cement plants, power stations and chemical industries.
To ensure the excellent performance of grinding balls, We've set up flawless quality detection systems, advanced quality control and test equipments. We have also obtained ISO 9001:2008 International Quality System Authentication.
Strength casting quality and credit forging magnificence. Insisting on the theory of "Quality first, Credit Goal, and Mutual Profits". We are trying best to supply customers both at home and abroad with high quality products and satisfactory service.
We sincerely welcome customers from both at home to our factory for on-site inspections!
- Size: 9.99
- Place of Origin: Zhangqiu
- Brand Name: Jinan Zhongwei
- Model Number: 45# 60Mn B2 B3 Low Medium High Chrome
- Weight: 1000.000 kg
- :
FORGED STEEL BALL CHEMICAL ELEMENTS AND HARDNESS
Material | Chemical elements | ||||
C | Si | Mn | P/S | Cr | |
B2 | 0.72-0.85 | 0.17-0.37 | 0.7-1.0 | <0.025 | 0.4-0.6 |
60Mn | 0.55-0.65 | 0.17-0.37 | 0.7-1.0 | <0.04 | <0.25 |
45# | 0.42-0.50 | 0.17-0.37 | 0.5-0.8 | <0.035 | ≤0.25 |
B3 | 0.58-0.66 | 1.3-1.9 | 0.65-0.8 | <0.025 | 0.7-0.9 |
Hardness
Material
|
25mm-50mm HRC |
60mm-90mm HRC |
100mm-125mm HRC
| |||
Surface | Core | Surface | Core | Surface | Core | |
B2 | 60-65 | 58-62 | 58-63 | 50-55 | 56-60 | 40-45 |
60Mn | 58-63 | 55-60 | 58-63 | 40-45 | 56-60 | 30-35 |
45# | 55-58 | 45-55 | 55-58 | 30-35 | 50-55 | 25-30 |
B3 | 60-65 | 58-63 | 56-65 | 55-63 |
CAST IRON BALL CHEMICAL ELEMENTS AND HARDNESS
Name |
Material | Chemical elements | Hardness | |||||
C | Si | Mn | S | P | Cr | HRC
| ||
Cast iron ball | Special cr1 | 2.0-3.0 | <1.0 | 0.5-2.0 | ≤0.06 | ≤0.06 | >20 | 60-65 |
Special cr2 | 2.0-3.0 | <1.0 | 0.5-2.0 | ≤0.06 | ≤0.06 | >15 | 58-64 | |
High Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≤0.06 | ≤0.06 | >10 | 58-63 | |
Medium Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≤0.06 | ≤0.06 | ≥5 | 48-55 | |
Low Cr | 2.2-3.4 | ≤1.2 | 0.5-1.5 | ≤0.06 | ≤0.06 | 1.0-1.5 | 45-50 |
Hardness
Material | 20mm-40mm HRC | 50mm-80mm HRC | 90mm and above HRC | |||
Surface | Core | Surface | Core | Surface | Core | |
Special Cr:>20 | 60-65 | 60-65 | 60-65 | 60-65 | 60-65 | 58-63 |
Special Cr:>15 | 58-64 | 58-64 | 58-64 | 58-64 | 58-64 | 56-62 |
High Cr:>10 | 58-63 | 58-63 | 58-63 | 58-63 | 58-63 | 56-61 |
Medium Cr:≥5 | 48-55 | 48-55 | 48-55 | 48-55 | 48-55 | 46-53 |
Low Cr:1-1.5 | 45-50 | 45-50 | 45-50 | 45-50 | 45-50 | 43-48 |