High carbon forged grinding media steel balls for mining
Description
Product Name: Forged grinding media steel balls
Size: Φ 20mm - Φ 150mm
Grade: 45#, 50Mn, 60Mn, 65Mn, B2, B3, BL, BG
Certification: TUV ISO 9001 / ISO14001 / ISO45001 / SGS
Hardness: HRC55-66
Breakage rate: <1%
Application Areas: Mines, Cement Plant, Power Station, Chemical Industry, Quartz / silicon sand factory
Grinding media ball Classification and Chemical Composition
| Name | C | Mn | Si | S | P | Cr |
| SY-01-45# | 0.42-0.48 | 0.50-0.80 | 0.17-0.37 | 0.05max | 0.05max | 0.15max |
| SY-02-50Mn | 0.48-0.56 | 0.65-1.00 | 0.17-0.37 | 0.05max | 0.05max | 0.15max |
| SY-03-60Mn | 0.57-0.65 | 0.70-1.10 | 0.17-0.37 | 0.05max | 0.05max | 0.25max |
| SY-04-65Mn | 0.62-0.75 | 0.90-1.20 | 0.17-0.37 | 0.05max | 0.05max | 0.25max |
| SY-05-B2 | 0.75-0.85 | 0.70-0.90 | 0.17-0.35 | 0.05max | 0.05max | 0.40-0.60 |
| SY-06-B3 | 0.50-0.65 | 0.40-1.00 | 1.35-1.85 | 0.05max | 0.05max | 0.80-1.20 |
| SY-07-BL | 0.55-0.75 | 0.65-0.85 | 0.15-0.35 | 0.05max | 0.05max | 0.70-1.20 |
| SY-08-BG | 0.90-1.05 | 0.35-0.95 | 0.15-0.35 | 0.05max | 0.05max | 1.0-1.70 |
Grinding media ball Mechanical Propety
| Name | Impact Value AK. J/cm2 | Dropping test(sm) | Hardness | |||||
| Ф25-50(1"-2") | Ф60-90(2.5"-3.5") | Ф100-150(4"-6") | ||||||
| Surface | Core | Surface | Core | Surface | Core | |||
| SY-01-45# | ≥12 | ≥15000 | ≥55 | ≥38 | ≥50 | ≥35 | ≥45 | ≥25 |
| SY-02-50Mn | ≥12 | ≥15000 | ≥56 | ≥40 | ≥56 | ≥35 | ≥50 | ≥30 |
| SY-03-60Mn | ≥12 | ≥15000 | ≥58 | ≥45 | ≥58 | ≥38 | ≥52 | ≥35 |
| SY-04-65Mn | ≥12 | ≥15000 | ≥60 | ≥52 | ≥60 | ≥42 | ≥53 | ≥36 |
| SY-05-B2 | ≥12 | ≥15000 | ≥60 | ≥60 | ≥60 | ≥54 | ≥55 | ≥48 |
| SY-06-B3 | ≥12 | ≥15000 | ≥60 | ≥60 | ≥60 | ≥54 | ≥58 | ≥53 |
| SY-07-BL | ≥12 | ≥15000 | ≥60 | ≥60 | ≥60 | ≥54 | ≥58 | ≥55 |
| SY-08-BG | ≥12 | ≥15000 | ≥60 | ≥60 | ≥60 | ≥60 | ≥60 | ≥60 |
Company Profile
Shandong Shengye Grinding Ball Co., Ltd specializes in the production of forged steel ball, grinding rods, chrome ball for Mines industry and cement plants. Our 95% products export more than 30 countries. More than 30 years production experience and TUV, ISO, SGS etc. Certificated qualification and extreme standard let us keep very competitive in the current market.
Our staff are trained and selected by strict overseas technology. The quality of products are consistent and the specifications are complete. The annual output of diameter DIA 20mm-DIA 150mm grinding media balls is 150000 tons. 
Production Processing
We have our own seven systems to ensure the delivery and quality, including material supply, production and management, quality control, packing, inventory, ex-factory inspection and transportation. After confirming the order we make detailed production plan including calculating time of each system, workshop arrangement, workers arrangement...etc. And we follow the plan strictly. 
Packing & Delivery
1. Transpotation
Generally shipped by ocean, or Customers designated transportation mode.
2. Packing way
A. Steel drums (850-930kgs/drum) b. Flexible container bags(1ton/bag)
3. Delivery Time
Witnin 15-20 days after received the payment or LC at sight. (Generally it is 5-10 days if the grinding balls are in stock. Or it is 15-20 days if the grinding balls are not in stock, it is according to quantity. )
4. Payment Terms
Payment≤1000USD, 100% in advance. Payment≥1000USD, 30% T/T in advance, balance before shippment. 
Our Service
1. Free samples could be sent for evaluation, you pay the freight cost;
2. If any quality problems, we are committed to a full refund.
3. Pay a return visit once a week.
4. When a fault occurs we will deal with it for the first time and resolve problem within 1-2 working days.
5. If you have any question, please contact me freely. We will give you a reply in the first time.
Quality Control
Our products have passed the TUV ISO 9001 / ISO14001 / ISO45001 / SGS ect. Certificates. We have first-class laboratory, and equipped with advanced testing equipment, such as Spectrometer, hardness tester, microscope, drop tester, impact tester, laser cutting machine, etc., to ensure that our grinding steel balls from raw material into the factory to the production process to the shipment of every link quality control assurance and traceability. 