our aluminium bronze alloys
Performance, durability and corrosion resistance for demanding industrial applications
Discover our aluminium bronze alloys
Aluminium bronze alloys are widely recognized for their excellent corrosion resistance, high mechanical strength and long-term durability.
Used across demanding industries such as railway, energy and mechanical engineering, they offer a reliable and high-performance alternative to traditional alloys such as brass.
Depending on their composition, particularly with the addition of iron or nickel, these alloys can provide enhanced resistance to wear, impact and aggressive environments.
Recognized technical properties
Aluminium bronze alloys are primarily composed of copper (80–90%) and aluminium (5–10%). Additional elements such as iron or nickel can be added to further improve mechanical performance.
They are characterized by:
- Excellent corrosion resistance (marine, chemical, cavitation)
- High mechanical strength
- Good wear resistance and fatigue resistance
- Long-term stability and durability
Their excellent castability allows the production of complex and precise components while reducing machining operations.
Our main alluminium bronze grades
Each grade offers specific properties to meet different mechanical, environmental and aesthetic requirements.
CuAl9: An alloy designed for surface finish and aesthetic parts
Copper
Aluminium 9%
Alloy : CuAl9 ideal for high-quality finishes
Good mechanical properties with excellent polishing capability
CuAl9 is particularly valued for its excellent castability and polishability. It is ideal for components where appearance, finish quality and durability are equally important.
CuAl9 is an aluminium bronze alloy particularly suited for components requiring a refined surface finish. Its excellent castability allows the production of complex parts with clean, homogeneous surfaces.
Used in decorative and high-end technical applications, it can be supplied as-cast, polished, painted or surface-treated. Lead-free and zinc-free, it is a durable alternative to more traditional alloys.
CuAl10Fe2 : The standard alloy for industrial applications
Copper
Aluminium 10%
Iron 2%
Alloy : CuAl10Fe2 the reference alloy for demanding industrial applications
An excellent balance of strength, elasticity and elongation
CuAl10Fe2 is the most widely used aluminium bronze alloy for technical parts. It offers an excellent balance between mechanical strength, elasticity and long-term reliability.
CuAl10Fe2 is the most commonly used aluminium bronze alloy for technical components. Its versatility makes it suitable for a wide range of applications, especially in railway and industrial environments.
Its good load-bearing capacity, combined with high elasticity and elongation, allows it to absorb stress without failure while maintaining its properties over time. Easier to cast than more highly alloyed grades, it is a reliable and cost-effective solution for many industrial uses.
CuAl10Fe5Ni5 For highly corrosive and severe environments
Copper
Aluminium 10%
Iron 5%
Nickel 5%
Alloy : CuAl10Fe5Ni5 maximum corrosion resistance
Excellent performance in marine and highly corrosive environments
CuAl10Fe5Ni5 is a premium aluminium bronze alloy developed for the most aggressive environments, where corrosion resistance is a critical requirement.
CuAl10Fe5Ni5 is designed for applications exposed to severe corrosion, especially in marine or aggressive industrial environments. Its composition gives it outstanding corrosion resistance and excellent wear performance.
More highly alloyed than CuAl10Fe2, it is selected when corrosion resistance becomes the determining factor in material choice. It is particularly suitable for long-life, high-reliability components used in critical conditions.
Did you know ?
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The Colossus of Rhodes, one of the Seven Wonders of the Ancient World, was built in the 3rd century BC using bronze recovered from weapons. After its destruction, the metal was reused.
This illustrates a key property of copper alloys: they can be recycled indefinitely without loss of performance — a characteristic still central to modern aluminium bronze alloys.
Today,
Although the Colossus no longer exists today, copper-based alloys have retained their essential properties over centuries: durability, corrosion resistance and recyclability.
These same properties are found in modern aluminium bronze alloys used in today’s industries.
