CuAl11Ni6Fe6 (CW308G / C63020 / ALBA 180-4) is a high-performance nickel–aluminum bronze alloy engineered for systems operating under extreme conditions, including heavy loads, severe mechanical stress, and elevated temperatures. This advanced alloy fully complies with critical aerospace and defense specifications such as AMS 4590, NFL 14706, and UA11N.
With its high nickel and iron content, CuAl11Ni6Fe6 provides exceptional wear resistance, thermal stability, seawater corrosion resistance, and high impact absorption. Its robust, durable, and long-lasting structure ensures reliable performance in both static and dynamic applications.
Technical Advantages:
- Very high tensile and yield strength
- Increased hardness and friction resistance due to nickel addition
- Excellent corrosion resistance in seawater, saline atmospheres, and chemical environments
- Dimensional stability at high temperatures with minimal deformation
- Long-term durability against wear, cavitation, and impact
- Suitable for machining, forging, and welding processes
Main Application Areas:
Defense & Aerospace: Landing gear components, structural connection systems, helicopter parts
Marine Industry: High-pressure valves, pump shafts, propeller systems
Energy & Petrochemical: Valve components exposed to corrosive media, high-temperature connectors
Heavy Industry: Rail system parts, robotic arm components, friction-loaded machine elements
Space & Military Systems: Components requiring thermal shock resistance
Quality Assurance and Standards:
The CuAl11Ni6Fe6 alloy is fully compliant with the following international specifications:
EN: CW308G
UNS / ASTM: C63020
DIN: 2.0978
Aerospace: AMS 4590
French Military: NFL 14706
UA11N
All products are supplied with comprehensive documentation, including chemical analysis reports, mechanical test results, conductivity measurements, and microstructure evaluations. Production processes are carried out under strict traceability and quality management systems.
CHEMICAL COMPOSITION
| Cu | Al | Fe | Ni | Mn | Pb |
|---|---|---|---|---|---|
| % rem | 10.5-12.5 % | 5-7 % | 5-7 % | max 1 % | max 0.02% |
AVALIABLE STANDART
| EN | ASTM | AMS | DIN | RWMA |
|---|---|---|---|---|
| CW308G | C63020 | AMS 4590 | 2.0978 CuAl11Ni6Fe6 |
NFL 14706 UA11N |
APPLICATIONS
- Bushing,Bearing and Shaft Pieces in Liners
- Bushing, Bearing, Piston Pim Landing Gear in Aviation
- Marine and Water Treatment Application
- Chemical Industry
- Corrosion Resistance Applications for Food Industry
- Machinery Liners
SUPPLIED FORM
- Rings
- Plates
- Discs
- Centrifugals
- Round bars
- Square bars
- Rectangular bars
- Hexagon bars
- Custom shapes are available upon reques
PHYSICAL PROPERTIES
| Density | Specific Heat | Electrical Conductivity | Electrical Conductivity (I.A.C.S.) | Thermal Conductivity |
|---|---|---|---|---|
| 7.4 g/mm3 | 0.42 J/g.K | 63 W/m.K |
MECHANICAL PROPERTIES
| MATERIAL CONDITION | Tensile Strenght Rm N/mm² | Yield Strengh Rp 0,2 N/mm² | Elongation (A5) % | Hardness (Brinell) HB30 |
|---|---|---|---|---|
| EXTRUDED | min. 740 | min. 390 | min. 8 | min. 210 |
| FORGED | min. 740 | min. 390 | min. 8 | min. 210 |
1. Defense and Marine Industry
Propeller bushes, shafts, valves and bearings
Components resistant to cavitation and impact used in naval vessels
Fasteners and assembly elements in continuous contact with seawater
2. Heavy Industry and Engineering
Gears, bushings and guides operating under high load and friction
Impact-absorbing components in press machines
Elements working under continuous wear and fatigue conditions
3. Aerospace Industry
Landing gear components and structural connection elements
Vibration- and heat-resistant structural parts
4. Petrochemical and Energy Sector
Valves, flanges and pump components exposed to corrosion and abrasive fluids
Turbine components and steam line parts
5. Nuclear and Critical Systems
Special applications requiring non-magnetic properties and high strength
High-security connection systems and energy transmission components
