Bronzes
The bronzes are copper based alloys with an addition of elements such as tin, phosphorus, manganese, aluminium, or silicon. The two most common categories of bronze are aluminium bronzes and phosphor bronzes.
Aluminium Bronzes - alloys of copper and aluminium, with additions such as nickel, iron and silicon used to enhance specific mechanical, physical and fabrication characteristics.
They are most valued for their blend of high strength and corrosion resistance. The aluminium bronzes are also tarnish-resistant, show low rates of corrosion in seawater and under adverse atmospheric conditions. The corrosion resistance is attributed to a tough layer of aluminium oxide, which forms naturally on the surface of the alloy and acts as a barrier.
In addition to their strength properties and inherent corrosion resistance, aluminium bronzes may also be selected for their wear and abrasion resistance, controlled impact strength, low magnetic permeability, formability and weldability. Available in a wide range of grades and offered in rod, bar, section, sheet and plate making them an essential engineering material. For a complete list of our aluminium bronze specifications please click here.
Phosphor Bronzes - alloys of copper and up to 12% tin with phosphorus primarily added as a de-oxidant, but also to improve fluidity and improve mechanical properties.
The phosphor bronze alloys are noted for their strength and toughness coupled with high corrosion resistance and excellent spring and plating properties. The presence of tin imparts a good wear resistance especially at higher levels giving rise to their use in bearing components. They also have good thermal and electrical conductivities and are often used in the electrical and electronic industries.
For a complete listing of the phosphor bronze alloys available from Columbia Metals click now.