Aluminium Bronze: Strength and Reliability for Demanding Applications

When performance and reliability matter most, aluminium bronze is a material that delivers. At P&P Bornmore Metals, we stock two key grades - AB2 (CC333G) in hollow and round bar, and CA104 (CW307G) in round and hexagonal bar - both known for their strength, corrosion resistance and durability in tough environments.

Why Aluminium Bronze Performs So Well

Aluminium bronzes are copper-based alloys that include aluminium as the primary alloying element, often with nickel, iron or manganese added for enhanced properties. The result is a material that combines the strength of steel with the corrosion resistance of copper - an ideal balance for demanding, high-specification components.

1. Superior Corrosion Resistance

Aluminium bronze forms a tough, adherent oxide layer that protects it from seawater, chemical attack and wear. This self-protecting surface makes AB2 and CA104 perfect for marine, offshore and subsea environments.

2. High Strength and Fatigue Resistance

Both grades retain excellent mechanical strength under high loads and temperatures. This makes them suitable for high-stress parts such as bearings, bushes, valve stems and pump components.

3. Wear and Galling Resistance

When metals operate under sliding or rotating conditions, friction can cause wear or galling. Aluminium bronze resists both, making it a preferred material for moving assemblies where reliability is key.

4. Non-Sparking and Non-Magnetic Properties

In explosive or sensitive environments - such as petrochemical plants or naval vessels - aluminium bronze’s non-sparking and non-magnetic characteristics offer added safety.

AB2 (CC333G) – Hollow and Round Bar

AB2 (CC333G) is a nickel-aluminium bronze designed for exceptional corrosion and cavitation resistance, particularly in seawater. It’s widely used in marine and offshore engineering, where components are constantly exposed to saltwater and heavy loads.

Common uses include propellers, pump housings, bearings, bushes and hydraulic parts. Its combination of strength, toughness and corrosion resistance makes it a dependable choice for long-term service in harsh environments.

CA104 (CW307G) – Round and Hexagonal Bar

CA104 (CW307G) offers excellent mechanical strength and fatigue resistance, making it ideal for aerospace, defence and heavy engineering applications. It is often used in high-performance bearings, gears, fasteners and valve components where reliability is critical.

The alloy maintains its strength under stress and provides good machinability and dimensional stability, ensuring precision and durability in service.

Why Aluminium Bronze for High-Specification Components?

When the cost of component failure is high - whether it’s in a submarine, aircraft or turbine - aluminium bronze delivers the strength, reliability and corrosion protection required to keep systems operating safely and efficiently. Both AB2 and CA104 meet the performance standards of industries that cannot afford compromise

At P&P Bornmore Metals, we carry a wide range of aluminium bronze stock to meet customer requirements quickly and efficiently. Whether you need AB2 hollow bar for marine applications or CA104 hexagonal bar for engineering components, we can supply material cut to your specifications with expert technical support.

If you need a material that combines strength, wear resistance and corrosion protection in one, aluminium bronze is a proven choice. Get in touch with our team today to learn more about our stock range or to request a quotation.