Our Multi-element alloy casting balls Grinding Ball are high-performance, wear-resistant materials developed using advanced metallurgical formulas and specialized heat-treatment quenching processes. Tailor-made for ball mill grinding systems, they are widely used in demanding, high-wear environments such as mineral processing, cement production, and thermal power generation.
To meet the specific operational needs of our clients, we offer a range of cast ball grades—including low-chromium, medium-chromium, and multi-alloy options—covering various hardness levels and impact toughness ranges. Products can be customized based on material characteristics, operating conditions, and equipment specifications, truly realizing a customer-centric supply model. Whether for crushing and grinding hard ores in mineral processing plants, high-efficiency grinding in cement facilities, or specialized applications like desulfurization and coal pulverization in power plants, we provide targeted wear-resistance solutions.
These cast balls are highly resistant to cracking or fragmentation caused by impact and fatigue during prolonged use. By minimizing issues such as equipment downtime, uneven wear, and excessive media consumption resulting from ball breakage, they directly help customers reduce steel consumption costs per unit of material, decrease the frequency of maintenance shutdowns, and boost continuous production efficiency.
Choosing our multi-alloy cast grinding balls means securing quality assurance across the entire process—from alloy formula design and precision heat treatment to final factory quality inspection. We are committed to delivering grinding media that offer superior wear resistance, stability, and cost-effectiveness through continuous technological innovation and process optimization.
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Chemical Composition Of Low And Medium Chromium Alloy Balls
| Brand name | C | Si | Mn | Cr | Mo | P | S |
| ZQCr–2 | 2.0~3.3 | ≤1.2 | 0.3~1.0 | 1.0~3.0 | 0~1.0 | ≤0.10 | ≤0.10 |
| ZQCr–5 | 2.0~3.3 | ≤1.2 | 0.3~1.0 | 4.0~6.0 | 0~1.0 | ≤0.10 | ≤0.10 |
| ZQCr–8 | 2.1~3.3 | ≤1.2 | 0.3~1.0 | 7.0~10.0 | 0~1.0 | ≤0.10 | ≤0.06 |
Mechanical Properties And Microstructure
| Brand name | Surface Hardness (HRC) | Impact Value ak (J/cm²) | Microstructure | Time of Falling Balls (times) |
| Tempered (B) | ||||
| ZQCr–2 | ≥45 | ≥1.6 | P+C | ≥8000 |
| ZQCr–5 | ≥47 | ≥2.0 | P+C | ≥8000 |
| ZQCr–8 | ≥50 | ≥2.0 | P+C | ≥10000 |
Chemical Composition Of Multi-element Alloy Casting Ball
| Brand name | C | Si | Mn | Cr | Mo | Cu | Ni | Nb | Ti | Zr | V | B | P | S |
| Multi-element Ball I | 1.8~3.2 | <0.8 | 0.3~1.2 | 1.5~3.0 | ≤0.5 | ≤0.8 | ≤0.5 | ≤0.2 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.1 | ≤0.06 | ≤0.06 |
| Multi-element Ball II | 1.8~3.2 | <0.8 | 0.3~1.2 | 3.0~4.5 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.2 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.1 | ≤0.06 | ≤0.06 |
Mechanical Properties And Microstructure
| Brand name | Surface Hardness (HRC) | Impact Value ak (J/cm²) | Microstructure | Ball Diameter | Time of Falling Balls (times) |
| Multi-element Ball I | 48~56 | ≥2.0 | P+C | ＜Φ80 | ≥12000 |
| Multi-element Ball I | 48~56 | ≥2.0 | P+C | ≥Φ80 | ≥10000 |
| Multi-element Ball II | 50~62 | ≥3.5 | M+C | ＜Φ80 | ≥12000 |
| Multi-element Ball II | 50~62 | ≥3.5 | M+C | ≥Φ80 | ≥10000 |
Anhui Ningguo Wanfu New Material Science and Technology Development Co., Ltd. is located at the foot of the Huangshan Mountain -- the capital of wear-resistant materials in China, the provincial high-tech economic and technological development zone, and is a professional manufacturer of wear-resistant materials series products.
Wear-resistant material technology combined with grinding technology as the guide, sets scientific research, design, development, manufacturing, and technical services as one. With a resin sand extrusion model automatic production line, resin sand automatic production line, iron film coated sand casting production line, with no box shape casting production lines, automatic oil quenching heat treatment production line, desktop car and well type heat treatment furnace, shot blasting machine and direct reading spectrometer, chemical analysis instruments, metallurgical microscope, durometer, impact tester, etc. A full set of production and physical and chemical testing equipment...
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qi18156307775@163.com
+86-18156307775
+86-563-4187518
No.1 Chuangxin South Road, Economic and Technological Development Zone, Ningguo City, Anhui Province, China
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