Our products advantages
We are a manufacturer specializing in the production of grinding steel balls, grinding rods, grinding cylpebs and casting balls for Mining industry and cement plants, our 95% products export more than 30 countries. We have more than 30 years production experience and has passed TUV, ISO, SGS etc. certificated qualification and extreme standard, these let us keep very competitive in the current market. breaken rate.
Chrome cast steel ball Info
Product Name: Chrome cast stee ball
grinding ball diameter: Φ 13mm - Φ 130mm
Material Grade : Cr28,Cr17,Cr10,Cr1
Certification: TUV ISO9001, SGS
Hardness: HRC55-66
Breakage rate: <1%
Application Areas: Mines, Cement Plant, Power Station, Chemical Industry
Chrome cast steel ball classification and Chemical Composition
| Name | Designation | C | Si | Mn | Cr | S | P | Mo |
| High-Cr- ball/Cylpebs | ZQCr28 | 2.0-3.5 | ≤1.0 | ≤1.5 | 28-30 | ≤0.08 | ≤0.06 | ≤1.0 |
ZQCr17 | 2.0-3.5 | ≤1.0 | ≤1.5 | 17-18 | ≤0.08 | ≤0.06 | ≤1.0 | |
ZQCr10 | 2.0-3.5 | ≤1.0 | ≤1.5 | 10-12 | ≤0.08 | ≤0.06 | ≤1.0 | |
| Low-Cr-ball/Cylpebs | ZQCr1 | 2.0-3.5 | ≤1.0 | ≤1.5 | 1-3 | ≤0.08 | ≤0.06 | ≤1.0 |
Chrome cast steel ball mechanical propety
| Name | Designation | Hardness(HRC) /Heat treatment | Hardness(HRC) /Cast | Impact Value AK.J/cm2 | Microstructure | Wear Rate (g/t cement) | Breakage rate(%) |
| High-Cr-ball/Cylpebs | ZQCr28 | 55-65 | ≥50 | ≥4.0 | M+C | ≤25 | ≤0.5 |
ZQCr17 | 60-65 | ≥50 | ≥4.0 | M+C | ≤25 | ≤0.5 | |
ZQCr10 | 60-66 | ≥50 | ≥4.0 | M+C | ≤30 | ≤0.5 | |
| Low-Cr-ball/Cylpebs | ZQCr1 | ≥45 | ≥4.0 | P+C | ≤1.0 |
Company Profile
Shandong Shengye Grinding Ball Co., Ltd specializes in the production of grinding steel balls for ball mill. Staff are trained and selected by strict overseas technology . The quality of products is consistent and the specifications are complete. The annual output of diameter DIA 20MM-DIA 150MM grinding steel balls is 100000 tons.
Due to the application of internationally advanced technology and manufacture experience ,our grinding steel balls have the advantages of rubbing endurance, crashing tolerance and roundness persistence ,compared to other products in this field. We record the data for our products, follow up customers and drop in services at calling to solve customers' uncertainties. 
Testing Equipment
Our company has a 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 products from raw material into the factory to the prduction process to the shipment of every link quality control assurance and traceability.
Packing and Delivery
1. Transpotation
Ocean shipping ( 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 steel ball is in stock. or it is 15-20 days if the steel ball is 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
we could offer free chrome cast steel ball samples, you only need to pay the freight cost.
2. After-sales service
Go abroad to visit regular customers several times every year;
Attend national exhibitions;
Pay return visit once a week after the steel balls are received, inquire about the usage situation so that we can help to solve possible problems promptly.
3.Sales areas
Our chrome cast steel ball is exported to over 30 countries and regions including USA, Republic of Korea, Japan, Malaysia, Australia, Canada and South Africa, etc., well and universally received by clients. In order to better serve customers, we have set up the office in Malaysia, Chile, United States and Spain.
Certificate Show
Our chrome cast steel ball is passed the TUV ISO9001, ISO14001, OHSAS 18001, SGS, BV ect. Certificates