The aluminium bronzes are a range of copper based alloys in which aluminium up to 10 to 14% is the primary alloying element. Their combination of strength and corrosion resistance makes them one of today’s most important engineering materials for highly stressed components in corrosive environments. They are available in both cast and wrought form and are readily weldable into fabricated components such as pipes and pressure vessels. They can have strength greater than that of carbon steels and a corrosion resistance better than most stainless steels.

The outstanding corrosion resistance of aluminium bronzes in marine and chemical processing environments is due to the formation of an intrinsic, thin but tough adherent film of aluminium oxide. This film is self healing and once formed, prevents further oxidation and consequently eliminates flaking so often encountered with ferrous alloys. Furthermore, the nickel-aluminium bronzes have excellent resistance to stress corrosion and corrosion fatigue

Nickel-aluminium bronze has a greater resistance to cavitation erosion than cast steel, Monel alloys and the 400 and 300 series of stainless steel. By the same token, it has excellent resistance to impingement attack by gas bubbles

Aluminium bronze alloys, and in particular the wrought products, have excellent resistance to shock provided the material is sound, and stress concentration is avoided in design.

Aluminium bronzes possess exceptional resistance to fatigue.

Aluminium Bronzes are twice as effective as steel in their ability to dampen vibrations.