Related process
Grinding media
Selection, application, and performance guidance connecting the circuit with the appropriate media family.
Review the processReliable media for moderate-energy service
COREX — C45 forged steel grinding ball
Designed for continuous operation, low abrasion, and moderate energy in SAG and ball mills.
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Where can COREX be evaluated?
Designed for continuous operation, low abrasion, and moderate energy in SAG and ball mills.
- SAG and ball mills
- Primary and secondary grinding
- Low abrasion and continuous operation
- Documented references: Ag-Pb-Zn, copper, gold, and low-to-moderate silica
Reliable, accessible performance
C45 forged steel ball
Designed for continuous, low-abrasion, moderate-energy operations. Its C45 steel offers an accessible solution with reliable performance for SAG and ball mills in primary and secondary stages.
Key benefits
- Reliable performanceKeeps a stable response in general service.
- Cost-benefitAccessible solution for continuous operation.
- Moderate energySuitable for controlled-impact loads.
- General useVersatile in SAG circuits and ball mills.
Chemical composition (%)
| C | Si | Mn | Cr | Mo | S | P |
|---|---|---|---|---|---|---|
| 0.42 - 0.50 | 0.17 - 0.37 | 0.50 - 0.80 | 0.10 - 0.25 | < 0.002 | ≤ 0.035 | ≤ 0.035 |
Mechanical properties
- Hardness53 ± 3 HRC
- Impact toughnessLow - Medium
- Wear lossMedium - High
- Service lifeLow - Medium
Available size distribution
25.4 mm to 88.9 mm
Availability subject to operating specification
Recommended applications
| Mill type | SAG and ball mill |
|---|---|
| Process stage | Primary and secondary grinding |
| Ore type | Low abrasiveness |
| Application/Use | Continuous operation |
Reference minerals and ores
| Polymetallic ores | Ag - Pb - Zn |
|---|---|
| Sulphide ores | Copper and gold |
| Gangue/Matrix | Low to moderate silica |
| Abrasiveness | Low |
Indicative reference. Final selection must be validated against mineralogy and circuit conditions.
Standards and presentation
- Process-controlled C45-grade forged steel
- Full lot traceability
- Bulk bag or barrel packaging
- Labelling
Selection criteria
Validate before specifying
Process and equipment
Identify stage, mill, operating window, and objective.
Ore and wear mechanism
Review hardness, abrasiveness, impact, and relevant variability.
Controlled technical trial
Agree on baseline, dosage, duration, and success criteria.
Operational follow-up
Measure consumption, performance, stability, and total cost.
Related evaluation path
Connect the product record with process context
Use the related process, knowledge, or PIC route before defining application fit.
Technical knowledge
How to select grinding media
Decision framework connecting ore, process stage, mill conditions, and performance evidence before selecting grinding media.
Read the decision guidePIC
Bring the operating challenge to PIC
Share the process, symptom, period, and available baseline so the challenge can be routed without presuming a product fit.
Bring a challenge