Solving the problem of grinding under medium-load conditions
In response to the industry pain point of "difficulty in balancing wear resistance and toughness" in medium-load mining grinding scenarios, Jinan Haoyang Forging & Casting Co., Ltd. recently launched a new high-chromium composite forged steel ball product. With a chromium content ratio of 10% - 15% and a gradient hardness process, it provides customers with more targeted solutions for wear resistance.
Compared with traditional carbon steel balls, the surface hardness of high-chromium composite forged steel balls can reach above HRC55, and the core impact toughness is ≥ 12J/cm². While maintaining good impact resistance, the wear resistance is increased by more than twice. After being tested on-site by the customer, in the iron ore grinding condition, the ball consumption of this product is reduced by 40% compared to 45# carbon steel balls, the breakage rate is controlled within 0.3%, and the grinding cost per ton of ore is reduced by 15 yuan.
At present, the high-chromium composite forged steel balls have obtained 3 national utility model patents, have passed the ISO9001 quality system certification, and have been successfully applied in large domestic mining enterprises such as Zijin Mining and Zhaoguang Mining. In the third quarter of 2025, the sales volume of Haoyang Casting and Forging's high-end forging balls increased by 22% year-on-year, and the export volume exceeded 8 million US dollars. The products are exported to more than 20 countries and regions around the world, including Australia and South Africa.
It is known that in order to meet the different needs of customers, Haoyang Casting and Forging can provide 20-100mm full-range customized services. For steel balls of 100mm and above in size, the drop test life verification is carried out strictly according to the formula N = 10000 × 100/D, ensuring the stable and reliable quality of the products.
