Aluminium Bronze CuAl11Fe6Ni6: The Optimal Choice for Slide Plates and Bearings

CuAl11Fe6Ni6 is a high-performance aluminium bronze alloy valued for its exceptional strength, wear resistance, and corrosion protection. Its composition is carefully balanced to deliver reliable performance in demanding environments such as marine, industrial, and heavy machinery applications.

Chemical Composition (Approximate)

Designations: DIN 2.0980 (or 2.0978), EN CW308G.

Key Properties

• High Corrosion Resistance: Excellent resistance to seawater and industrial corrosive environments; immune to stress corrosion cracking.

• Outstanding Wear Resistance: High aluminium, iron, and nickel content significantly enhances surface durability under friction.

• High Mechanical Strength: Yield strength ≥410 N/mm², tensile strength 740–760 N/mm², hardness up to 210 HB.

• Good Ductility: Elongation of 4–6% allows the alloy to withstand mechanical stress without fracturing.

• Thermal & Electrical Conductivity: Moderate thermal conductivity (63 W/m·K) and electrical conductivity (4.6 MS/m) at 20°C.

• Density: 7.6 g/cm³.

Applications

Slide Plates

Used in bridges, industrial machinery, and structural pivots where heavy loads and sliding motion occur. The alloy’s hardness and stability prevent rapid wear, ensuring smooth, long-term operation. Custom shapes (U-, L-, T-sections) are available.

Bronze Bearings

Ideal for high-load and high-speed applications such as sleeve bearings, flanged bearings, thrust washers, and bushings. High yield strength prevents deformation, while corrosion resistance makes them suitable for maritime equipment, hydraulic assemblies, and propeller shafts.

Other Common Uses

• Gears and worm gears

• Axles and plungers

• Valve bodies

• Propeller hubs and blades

• Wear plates

Available Forms

Bars, custom castings, bearing flanges, thrust washers, and slide plates. Special chemical compositions can be produced upon request.

Why Choose CuAl11Fe6Ni6?

This alloy delivers a unique balance of mechanical robustness and environmental resilience. For slide plates, it minimizes wear under continuous friction; for bearings, it supports heavy loads without failure. Industries such as marine engineering, heavy construction, and general machinery benefit from its proven reliability and longevity.