CuAl11Fe6Ni6 Self-Lubricating Bushings
CuAl11Fe6Ni6 Self-Lubricating Bushings
Marine-Grade CuAl11Fe6Ni6 Self-Lubricating Bushings
Reliable Corrosion-Resistant Bushings for Ocean Challenges
CuAl11Fe6Ni6 (also known as CW308G or CC334G) is a premium aluminum bronze alloy designed specifically for marine self-lubricating bushings. It excels in high-stress ocean settings by blending robust mechanical strength, exceptional seawater resistance, and built-in solid lubricants like graphite or MoS2. These bushings ensure maintenance-free performance in sliding components under heavy loads, minimizing downtime and operational expenses by 30% in dynamic saltwater conditions.
Unlike standard copper alloys, which succumb to salt spray, cavitation erosion, and marine growth—prompting costly, frequent replacements—CuAl11Fe6Ni6 provides enduring protection. With yield strength surpassing 410 N/mm² and a friction coefficient below 0.15, these bushings last over 5 years in aggressive marine exposure, supporting seamless integration in expanding offshore infrastructure.
CuAl11Fe6Ni6 Self-Lubricating Bushing in Marine Propeller Hub: CuAl11Fe6Ni6 bushing in a ship propeller hub, validated for seawater corrosion per EN 1982 standards.
Key Advantages: Why Choose CuAl11Fe6Ni6 for Marine Use
- Superior Corrosion Resistance: Resists seawater, salt mist, and chemical exposure in high-chloride, humid conditions—3x better than traditional brass for biofouling-prone areas.
- Self-Lubricating Efficiency: Embedded solid lubricants eliminate external oil needs, slashing pollution risks and suiting remote deep-sea installations.
- High Load and Fatigue Endurance: Handles loads over 500kg with shock vibration tolerance, perfect for wave-impacted operations; fatigue life >10^6 cycles.
- Eco-Friendly Compliance: Meets EU REACH and IMO guidelines with low-lead formulation, aligning with green marine initiatives.
- Seamless Integration: Standard sizes fit existing systems; customizable flanged or thrust designs with tolerances under 0.01mm for precise fits.
Performance Comparison: CuAl11Fe6Ni6 vs. Traditional Brass
| Metric | CuAl11Fe6Ni6 Bushings | Traditional Brass | Key Benefit |
|---|---|---|---|
| Corrosion Rate (mm/year, Seawater) | <0.01 | 0.05 | 5x Enhanced Durability |
| Friction Coefficient (Dry) | 0.12-0.15 | 0.20-0.25 | 30% Reduced Wear |
| Max Load (N/mm²) | 100 | 60 | Superior Heavy-Duty Support |
| Marine Service Life (Years) | 5+ | 2-3 | Extended Maintenance Intervals |
Data based on 2025 marine engineering benchmarks; EN 1982-compliant testing.
Marine Application Scenarios: Proven in Real-World Ocean Projects
- Shipbuilding and Propulsion: Ideal for propeller shaft bushings, rudder bearings, and anchor chain sliders—cuts seawater lubrication contamination and boosts efficiency in vessel operations.
- Port and Dock Equipment: Powers crane rails and gate thrust washers, defending against salt mist and wave surges in major hubs like Shanghai or Rotterdam ports.
- Offshore Platforms: Suited for oil well drill pipe sleeves and FPSO bearings, with self-lubrication thriving in extreme depths and constant motion.
- Renewable Ocean Energy: Enhances tidal/wind farm support sliders, offering high fatigue resistance for dynamic loads in blue energy boom.
Success Story: In a 2025 Shanghai port expansion, CuAl11Fe6Ni6 bushings reduced equipment maintenance by 25%, saving over $15,000 annually. Lab simulations showed wear rates half that of stainless steel in biofouling saltwater tests.
Technical Specifications and Customization Options
- Alloy Composition: Cu 80-88%, Al 10-12%, Fe 5-7%, Ni 5-7%—optimized for marine-grade aluminum bronzes per EN 1982.
- Standard Dimensions: ID 10-200mm, OD 15-250mm, Length 5-300mm (customizable for flanged/thrust variants).
- Surface Treatments: Graphite lubricant grooves, phosphating, or nickel plating for enhanced performance.
- Certifications: ISO 9001, EN 1982 (CC334G), ASTM B148—ensuring global marine reliability.
- Ordering Details: MOQ 50 units; lead time 2-4 weeks with CNC customization.
Related Alloy Insight: Explore CuAl10Fe5Ni5 (CC333G) for complementary marine uses—offering similar seawater immunity and strength for slow-speed bearings in desalination and offshore rigs, with negligible corrosion in high-flow environments.
FAQ: Quick Answers on CuAl11Fe6Ni6 Marine Bushings
Q: What makes CuAl11Fe6Ni6 ideal for saltwater environments? A: Its aluminum bronze composition forms a protective oxide layer, resisting corrosion at rates under 0.01 mm/year—far superior to brass in biofouling and cavitation scenarios.
Q: Are these bushings truly maintenance-free? A: Yes, embedded solid lubricants like graphite enable dry operation, eliminating oil needs and reducing pollution in remote marine setups.
Q: How does it compare to CuAl10Fe5Ni5 (CC333G)? A: Both excel in marine corrosion resistance per EN 1982, but CuAl11Fe6Ni6 offers higher strength for heavy loads, while CC333G suits slower, high-impact applications like valves.
Q: What’s the minimum order and delivery time? A: Start with 50 units; expect 2-4 weeks for delivery, including custom sizing for your marine project.
Q: Does it meet 2025 eco-standards for ocean tech? A: Absolutely—low-lead design complies with REACH and IMO, supporting sustainable offshore wind and tidal energy installations.
Get Started: Quote and Resources
Upgrade your marine operations with CuAl11Fe6Ni6 bushings—proven for demanding projects. Download our free Marine Bushing Guide or submit your specs for a no-obligation quote.
