Forged steel grinding balls have 4 types as follows:
1.60Mn forged grinding ball
Diameter: 20mm-150mm
Hardness: HRC 53-62
Chemical elements: Cr: 0.25max C: 0.55-0.65 Si: 0.17-0.37 Mn: 0.7-1.0 S&P: 0.04max
2.65Mn forged grinding ball
Diameter: 20mm-150mm
Hardness: HRC57-63
Chemical elements: Cr: 0.25max C: 0.62-0.70 Si: 0.17-0.37 Mn: 0.9-1.2 S&P: 0.035max
3.75MnCr forged grinding ball
Diameter: 20mm-150mm
Hardness: HRC60-65
Chemical elements: Cr: 0.4-0.6 C: 0.72-0.92 Si: 0.17-0.37 Mn: 0.7-1.0 S&P: 0.04max
4.60Si2CRV forged grinding ball
Diameter: 20mm-150mm
Hardness: HRC60min
Chemical elements: Cr: 0.9-1.2 C: 0.56-0.64 Si: 1.4-1.8 Mn: 0.4-0.7 S & P: 0.03max
Name |
Chemical Composition(%) |
|
C |
Mn |
Si |
Cr |
S |
P |
|
50Mn |
0.48-0.56 |
0.7-1.0 |
0.17-0.37 |
≤ 0.25 |
≤ 0.035 |
≤ 0.035 |
|
60Mn |
0.57-0.65 |
0.7-1.0 |
0.17-0.37 |
≤ 0.25 |
≤ 0.035 |
≤ 0.035 |
|
65Mn |
0.60-0.70 |
0.9-1.2 |
0.17-0.37 |
≤ 0.25 |
≤ 0.035 |
≤ 0.035 |
|
B2 |
0.7-0.85 |
0.7-0.8 |
0.17-0.37 |
0.2-0.7 |
≤ 0.03 |
≤ 0.03 |
|
75SiMn |
0.7-0.90 |
0.7-1.2 |
0.4-0.8 |
≤ 0.25 |
≤ 0.03 |
≤ 0.03 |
Wear-resistant
Alloy |
0.5-0.65 |
0.4-0.8 |
1.4-1.8 |
0.9-1.2 |
≤ 0.03 |
≤ 0.03 |
Impact Test
(Ak. J/cm^2) |
Endurance test times(5m/ per time) |
Hardness(HRC) |
Microstructure
|
|
Φ 25mm-Φ 60mm |
Φ 70mm-Φ 100mm |
|
Surface |
Core |
Surface |
Core |
|
≥ 12 |
≥ 10000 |
≥ 56 |
≥ 35 |
≥ 56 |
≥ 28 |
M+B+C
(M-Martensite; B-Bainitic; C-Carbide) |
|
≥ 13 |
≥ 10000 |
≥ 58 |
≥ 38 |
≥ 58 |
≥ 29 |
|
≥ 15 |
≥ 12000 |
≥ 60 |
≥ 42 |
≥ 60 |
≥ 30 |
|
≥ 17 |
≥ 12000 |
≥ 60 |
≥ 52 |
≥ 60 |
≥ 50 |
|
≥ 16 |
≥ 12000 |
≥ 60 |
≥ 50 |
≥ 60 |
≥ 48 |
|
≥ 17 |
≥ 12000 |
≥ 60 |
≥ 54 |
≥ 60 |
≥ 52 |
Qianbaidu Import & Export Co., Ltd. is located in Jinan city Shan Dong province, which is a manufacture and trader company appointed by the Technical Supervision Bureau of China. The main produces include concrete batching plant, tower crane, paper machinery and spare parts. Since entering the market, the company has aspired to place quality and service at the center of all our work, our products have got the quality certificate of ISO9000: 2008, CE certificate and SGS certificate and are selling well in nearly 30 cities and provinces in China and also exported to the Middle East, South America, Southeast Asia, Eastern Asia and Africa.
We are an ideal cooperative partner with good service; quick delivery and the best price for all large, medium and small construction enterprises. We keep the following as our tenet:
Firstly, what we sells not only product, but also service and credit
Secondly, what we considers is not only on our side but our customer's
Third, we offer the productions with best price, quick delivery and good service.
To choose QianBaiDu is the first step to your success! We welcome new and old customers' also sales agent to join our international sales network and contact us for future business relationships and achieving mutual success!
