bearing bushes bronze brass1
bearing bushes bronze brass

CuAl10Fe5Ni5 Aluminum Bronze Overview

Aluminum Bronze Bearing Bushing

CuAl10Fe5Ni5 Aluminum Bronze Overview

CuAl10Fe5Ni5 is a high-performance copper-based alloy primarily composed of aluminum, with additional elements such as iron and nickel. This alloy is known for its exceptional hardness, toughness, and resistance to corrosion, erosion, and seawater. It also performs well under high-temperature conditions, making it suitable for demanding applications like bearings and other heavy-duty components.

Chemical Composition (ASTM B505 C95500)

Element Min (%) Max (%)
Al 8.5 10.5
Cu 76.0 83.0
Fe 4.0 5.5
Mn – 3.0
Ni 4.0 6.0
Bi – 0.01
Cr – 0.05
Mg – 0.05
Pb – 0.03
Si – 0.1
Sn – 0.1
Zn – 0.50

Mechanical Properties (Minimum Values)

Property Continuous Casting (GC)¹ Centrifugal Casting (GZ)
Tensile Strength (Rm, MPa) 650 650
Yield Point 0.2% (Rp0.2, MPa) 280 280
Elongation 5D (A, %) 13 13
Hardness (HBW, 10-1000) 150 150

¹ For pieces with an exterior diameter of ≤ 300 mm. For larger sizes, values are to be agreed upon with the order.

Physical Properties

Property Value
Density (kg/dm³) 7.6
Specific Heat (J/(g·K)) 0.418
Thermal Expansion (10⁻⁶/K) 17 to 19
Thermal Conductivity (W/(m·K)) 60
Electrical Conductivity (MS/m) 4 to 6

Key Features and Applications

  • High Strength and Toughness: Suitable for heavy-load applications.
  • Corrosion and Erosion Resistance: Ideal for marine and chemical environments.
  • High-Temperature Performance: Maintains properties at elevated temperatures.
  • Applications: Bearings, bushings, gears, valve components, and other parts exposed to harsh conditions.

This alloy is a reliable choice for industries requiring durable and corrosion-resistant materials.

CuAl10Fe5Ni5 aluminum bronze Bearing

CuAl10Fe5Ni5 is a specific type of aluminum bronze alloy that is widely used in various industrial applications, particularly for bearings and other components that require high strength, corrosion resistance, and wear resistance. Below are the details of its common applications, properties, and typical parts made from this alloy:

  • Composition of CuAl10Fe5Ni5

    • Copper (Cu): Base metal (remaining percentage after other elements).
    • Aluminum (Al): ~10% – Provides strength, corrosion resistance, and oxidation resistance.
    • Iron (Fe): ~5% – Enhances wear resistance and mechanical properties.
    • Nickel (Ni): ~5% – Improves corrosion resistance, especially in seawater, and enhances strength.

  • Key Properties

    1. High Strength: Excellent mechanical properties, even at elevated temperatures.
    2. Wear Resistance: Ideal for applications involving friction and sliding contact.
    3. Corrosion Resistance: Resists corrosion in seawater, acidic, and alkaline environments.
    4. Good Machinability: Can be machined into complex shapes.
    5. Low Friction Coefficient: Suitable for bearing applications.
    6. Thermal Conductivity: Good heat dissipation properties.

  • Common Applications

    CuAl10Fe5Ni5 is commonly used in the following industries and applications:

    1. Marine Engineering:
      • Propeller shafts
      • Bushings and bearings for seawater pumps
      • Valve components
    2. Industrial Machinery:
      • Heavy-duty bearings
      • Gears and worm wheels
      • Hydraulic components
    3. Oil and Gas:
      • Subsea equipment
      • Valve seats and stems
      • Pump components

Typical Parts Made from CuAl10Fe5Ni5

  1. Bearings:
    • Plain bearings
    • Thrust washers
    • Sleeve bearings
  2. Bushings:
    • For heavy machinery and automotive applications
  3. Gears and Worm Wheels:
    • High-load, low-speed applications
  4. Valve Components:
    • Seats, stems, and guides
  5. Pump Components:
    • Impellers, shafts, and casings
  6. Propeller Shafts:
    • For marine vessels

Advantages in Bearing Applications

  • High Load Capacity: Can withstand heavy loads without deformation.
  • Self-Lubricating Properties: Reduces the need for external lubrication.
  • Long Service Life: Resists wear and corrosion, even in harsh environments.
  • Low Maintenance: Durable and reliable, reducing downtime.

Manufacturing Processes

  1. Casting: Sand casting, centrifugal casting, or continuous casting.
  2. Machining: CNC machining for precision parts.
  3. Forging: For high-strength components.
  4. Heat Treatment: To enhance mechanical properties.

Standards and Specifications

  • ISO: CuAl10Fe5Ni5 is standardized under ISO 428 for aluminum bronze alloys.
  • ASTM: ASTM B148 for cast aluminum bronze.
  • DIN: DIN 1714 for aluminum bronze casting alloys.

Conclusion

CuAl10Fe5Ni5 is a versatile aluminum bronze alloy that is particularly well-suited for bearing applications in demanding environments. Its combination of strength, wear resistance, and corrosion resistance makes it a preferred choice for industries such as marine, aerospace, and heavy machinery. Custom parts made from this alloy are designed to provide long-lasting performance with minimal maintenance.