Desulfurization Equipment
Erosion and corrosion-resistant cobalt alloy valve balls and valve seats for wet flue gas desulfurization (WFGD) systems. Our cobalt-chromium parts perform reliably in slurry environments with high limestone and gypsum abrasiveness.
Common Equipment Challenges
Understanding the root causes of component failure in desulfurization equipment applications helps identify the right material solutions.
Wear & Abrasion
High-velocity fluid flow, solid particle impact, and metal-to-metal friction cause rapid material loss and dimensional changes.
- Valve seats and sealing surfaces
- Pump impellers and casings
- Extrusion tooling surfaces
Corrosion & Erosion
Chemical attack from acidic or alkaline media, combined with mechanical erosion, accelerates material degradation and leakage.
- Chemical processing equipment
- Oilfield downhole tools
- High-pressure fluid systems
High Temperature Failure
Elevated operating temperatures cause thermal fatigue, oxidation, and loss of mechanical properties, reducing component lifespan.
- Power generation components
- Furnace and kiln parts
- Hot working tooling
Why Standard Materials Fail
Insufficient Hardness
Standard steels and alloys lack the hardness required to resist abrasive particles and high-contact-stress conditions, leading to rapid wear.
Poor Corrosion Resistance
Conventional materials corrode quickly in acidic, alkaline, or high-chloride environments, causing premature failure and contamination.
Thermal Instability
Many alloys lose strength and hardness at elevated temperatures, resulting in deformation, oxidation, and reduced service life.
Combined Stress Conditions
Real-world applications often involve simultaneous wear, corrosion, and thermal stress, requiring materials with balanced multi-property performance.
Cobalt-Based Alloy Solutions
Our cobalt-chromium alloys are specifically engineered to address the failure mechanisms common in desulfurization equipment applications, delivering superior performance under extreme conditions.
Exceptional Wear Resistance
High hardness (HRC 38-58) and carbide-strengthened microstructure resist abrasive wear, erosion, and galling, extending component life by 3-5x compared to standard materials.
Superior Corrosion Resistance
Chromium content (25-30%) provides excellent resistance to acidic, alkaline, and chloride-containing media, maintaining integrity in harsh chemical environments.
High-Temperature Stability
Retains hardness and strength up to 800-1000°C, resisting thermal fatigue, oxidation, and softening in elevated-temperature applications.
Custom Alloy Composition
Tailored Co-Cr-W-C compositions (e.g., Stellite 6, Stellite 12, Tribaloy T-800) optimized for specific application requirements and working conditions.
Typical Material Properties
| Property | Stellite 6 | Stellite 12 | Tribaloy T-800 |
|---|---|---|---|
| Hardness (HRC) | 38-45 | 50-58 | 58-62 |
| Max Service Temp (°C) | 800 | 900 | 1000 |
| Wear Resistance | Excellent | Superior | Outstanding |
| Corrosion Resistance | Excellent | Excellent | Very Good |
Note: Properties vary based on manufacturing process and heat treatment. Contact us for application-specific recommendations.
Discuss Your Application Requirements
Share your equipment specifications, working conditions, and current challenges. Our engineering team will recommend the optimal material and component solution.
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