Name | Designation | C | Si | Mn | Cr | S | P | Mo |
High-Cr-ball/Cylpebs | ZQCr 28 | 2.0-3.5 | ≤1.0 | ≤1.5 | 28-30 | ≤0.08 | ≤0.06 | ≤1.0 |
ZQCr 17 | 2.0-3.5 | ≤1.0 | ≤1.5 | 17-18 | ≤0.08 | ≤0.06 | ≤1.0 | |
ZQCr 10 | 2.0-3.5 | ≤1.0 | ≤1.5 | 10-12 | ≤0.08 | ≤0.06 | ≤1.0 | |
Low-Cr-ball/Cylpebs | ZQCr 8 | 2.0-3.5 | ≤1.0 | ≤1.5 | 1-3 | ≤0.08 | ≤0.06 | ≤1.0 |
Name | Design ation | Hardness(HRC) | ImpactValue AK.J/cm* | Microstructure | Times of FallingBalls | Wear Rate (g/t cement) | Breakage Rate(%) | |
Heat treatment | Cast | |||||||
High-Cr ball/Cylpebs | ZQ Cr 28 | 55-65 | ≥50 | ≥4.0 | M+C | M+C | ≤25 | ≤0.5 |
ZQ Cr 17 | 60-65 | ≥50 | ≥4.0 | M+C | ||||
ZQ Cr 10 | 60-66 | ≥50 | ≥4.0 | M+C | ≤30 | |||
Low-Cr-ball/Cylpebs | ZQ Cr 8 | 45-60 | ≥45 | ≥4.0 | P+C | P+C | ≤1.0 |
Mechanical Properties | ||||||||
Material | Hardness(HRC) | Impact | Falling Times | |||||
Φ20-Φ50 | Φ60-Φ90 | Φ100-Φ150 | ||||||
Surface | Core | Surface | Core | Surface | Core | |||
45# | ≥54 | ≥36 | ≥54 | ≥34 | ≥52 | ≥30 | ≥15 | ≥22000 |
50Mn | ≥58 | ≥38 | ≥58 | ≥36 | ≥55 | ≥32 | ≥15 | ≥22000 |
60Mn | ≥60 | ≥42 | ≥60 | ≥40 | ≥58 | ≥36 | ≥15 | ≥22000 |
65Mn | ≥60 | ≥42 | ≥60 | ≥40 | ≥58 | ≥36 | ≥15 | ≥22000 |
B2 | ≥60 | ≥60 | ≥60 | ≥50 | ≥60 | ≥46 | ≥15 | ≥22000 |
B3 | ≥60 | ≥60 | ≥60 | ≥50 | ≥60 | ≥48 | ≥15 | ≥22000 |
B4 | ≥60 | ≥60 | ≥60 | ≥55 | ≥60 | ≥52 | ≥15 | ≥22000 |
B6 | ≥60 | ≥60 | ≥60 | ≥59 | ≥60 | ≥55 | ≥15 | ≥22000 |
Chemical Components | ||||||
Type | Chemical components | |||||
C | Mn | Si | Cr | S | P | |
45# | 0.42-0.48 | 0.50-0.80 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 |
50Mn | 0.48-0.56 | 0.70-1.00 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 |
60Mn | 0.57-0.65 | 0.70-1.00 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 |
65Mn | 0.62-0.70 | 0.90-1.20 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 |
B2 | 0.75-0.85 | 0.70-0.90 | 0.17-0.37 | 0.40-0.60 | ≤0.030 | ≤0.030 |
B3 | 0.55-0.65 | 0.75-0.90 | 0.20-0.37 | 0.85-1.20 | ≤0.030 | ≤0.030 |
B4 | 0.58-0.66 | 0.65-0.80 | 1.60-1.90 | 0.70-0.90 | ≤0.030 | ≤0.030 |
B6 | 0.97-1.03 | 1.00-1.10 | 0.20-0.30 | 0.50-0.60 | ≤0.025 | ≤0.025 |
test the HRC of the steel ball

Packaging Details
Ton Bags and Iron Drums


Grinding technical guidance
Our experienced sales and technicians can assist you select the most suitable Grinding Media according to your specific application, as well as provide knowledge and technical guidance for grinding media.
Regular follow-up
Keeping close communication with our customers is necessary for us to have a better understanding of their operations and expectations. By regular follow-up our customers, we can monitor the operations and find way to futher improve the grinding efficiency.
After-sales service
If our products have any quality problems or our products don't meet customers' requirements, we solemnly promise that we will deal with it at the first time and give you a satisfactory solution within 1-2 working days.
A: We are a professional steel ball manufacturers, which have 12 years of production experience.
We also have Hi-Tech and capable production line.
Q2. In which countries are your products sold?
A: Our products are 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.
Q3: Are you trading company or manufacturer ?
A: We are factory.
Q4: How long is your delivery time?
A: Generally it is15-20 days if the goods are in stock. or it is 20-30 days if the goods are not in stock, it is according to quantity.
Q5: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q6: What is your terms of payment ?
A: 30% T/T in advance ,balance before shipment.