cual10fe2
Aluminium bronze for mechanical applications
Our flagship alloy for versatile applications
The addition of iron significantly improves the mechanical properties of CuAl10Fe2, making it one of the most widely used aluminium bronze alloys, particularly in the railway industry for over 70 years.
Its high strength, reliability and durability make it a key material for demanding applications. With mechanical properties comparable to medium-strength steel, combined with excellent corrosion resistance and good electrical conductivity, CuAl10Fe2 ensures long-term performance without risk of stress corrosion cracking.
This alloy is gravity cast in metal molds. Its properties are enhanced by rapid cooling due to the high thermal conductivity of the molds. Stainless steel inserts can also be overcast. Tight and consistent dimensional tolerances help reduce machining operations and overall component weight.
Performance and long-term reliability
CuAl10Fe2 is designed to withstand high mechanical stresses while maintaining excellent elasticity. With a minimum elongation of 20%, it can absorb loads without failure, ensuring reliable performance under demanding conditions.
Its strength, comparable to medium-strength steel, combined with good ductility, allows it to perform under heavy loads without degradation of its mechanical properties.
The alloy also offers excellent fatigue resistance, making it particularly suitable for components subjected to repeated load cycles.
CuAl10Fe2 maintains its mechanical properties at low temperatures without embrittlement and can be used in applications requiring high reliability.
Aluminium bronze alloys also exhibit excellent performance under wide thermal variations, with an operating range of approximately -250 °C to +300 °C, making them suitable for a wide range of industrial environments.
Mechanical properties of CuAl10Fe2
- Tensile strength: ~600 MPa
- Yield strength: ~250 MPa
- Elongation: ≥ 20%
- Brinell hardness: ~130 HB
Ideal for Railway and industrial Applications
CuAl10Fe2 is widely recognized in the railway industry for its outstanding mechanical and electrical performance. It is commonly used in onboard systems and particularly in overhead line equipment (catenary systems), where strength and conductivity are critical.
More broadly, this alloy is used in a wide range of industrial applications involving high mechanical stress or repeated loading. It is found in mechanical and electrical equipment, as well as in safety and structural components.
Its combination of strength, elasticity and corrosion resistance makes it particularly suitable for demanding and critical environments.
A reliable, durable and cost-effective alloy
CuAl10Fe2 offers an excellent balance between performance and manufacturability. Compared to more highly alloyed aluminium bronzes, it is easier to cast and process, allowing optimized production costs and lead times.
In electrical applications, it enables reduced cross-sections while maintaining efficient current flow, contributing to more compact and cost-effective designs.
Its versatility, durability and ease of implementation make it the standard aluminium bronze alloy for a wide range of industrial applications.
Discover our other types of alloys.
Do you have an aluminium bronze casting project?
Tell us about your requirements: quantities, dimensions, mechanical constraints, operating environment, alloy grade and delivery expectations. We support your project from technical review to gravity die casting production in aluminium bronze.
