High Chrome Alloy Grinding Balls
High chrome grinding balls are used in ball mills and SAG mills for milling and crushing materials like ore, coal, sand, and cement. The alloy casting provides a good microstructure, hardness, and low broken rate due to heat treatment, reducing wear and mill downtime.
Technical Specifications
Product Overview
High Chrome Alloy Grinding Media
These high chrome alloy grinding balls are engineered for heavy-duty industrial applications, including mining, cement production, and ore crushing. Featuring a chrome content of 10-26%, these balls offer superior micro-structure integrity through advanced alloy casting and heat treatment processes. Designed to minimize wear rates and reduce ball mill downtime, they provide consistent performance in demanding milling environments.
Mechanical Properties
Surface Hardness
63 HRC
Max Hardness
58 HRC
Min Hardness
Performance Metrics
- Micro Structure: Martensite + Carbide + residual Austenite
- Max Hardness Variation: HRC 2 (Surface to Core)
- Min. Falling Ball Cycles: 28,000
- Max Breakage/Deshaping Rate: 0.5%
- Impact Value
- 3.5 J/cm2
Chemical Composition
Composition Limits
| Element | Range (%) |
|---|---|
| Chromium (Cr) | 10.0 - 28.0 |
| Carbon (C) | 2.0 - 3.2 |
| Silicon (Si) | 0.3 - 1.2 |
| Manganese (Mn) | 0.2 - 1.5 |
| Molybdenum (Mo) | Max 1.50 |
| Nickel (Ni) | Max 1.20 |
| Copper (Cu) | Max 1.50 |
| Phosphorus (P) | Max 0.10 |
| Sulfur (S) | Max 0.12 |
Logistics & Standards
Compliance Standards
GB/T 17445-2009ASTM 531/A 532M-93AEN 12513:2000E
- Available Sizes (mm)
- 5681012.51517202530405060708090100110120130
- Packaging
- Metal drum with wood pallet, 800-1000 kgs per drum, 2 drums per pallet
