Aluminium Bronze is characterised by its excellent resistance to corrosion in sea water Aluminium bronze is a type of bronze in which aluminium is the main alloying metal added to copper, in contrast to standard bronze (copper and tin) or brass (copper and zinc). A variety of aluminium bronzes of differing compositions have found industrial use, with most ranging from 5% to 11% aluminium by weight, the remaining mass being copper; other alloying agents such as iron, nickel, manganese, and silicon are also sometimes added to aluminium bronzes. Aluminium bronzes are in the highest demand from the following industries and areas: General sea water-related service Water supply Oil and petrochemical industries (i.e. tools for use in non-sparking environments) Specialized anti-corrosive applications Certain structural retrofit building applications