Bronze is an alloy made of copper and some other metal, where the added metal can be aluminium , nickel, beryllium or tin, even if often the term bronze is understood as a copper-
This alloy mainly composed of copper, is enriched with tin up to an 8-
At an industrial level, bronze can be produced with up to a 30% of tin. The balance diagram copper-
Generally, different types of bronze always contain added elements other than tin:
Phosphorus disoxidizes and increases hardness; in phosphorus bronze there is a content of 0,4-
Lead is added in amounts from 1 al 5%. It remains confined in the edges of grains making it easier for machinery work. If instead, the percentage of lead reaches very high levels ( from 10 to 30%) such alloy presents a particular friction behavior, for this reason it is used for bearings
Zinc is used as disoxidizing.
Beryllium is added to increase hardness.
Bronze is used in the following:
Bearings and bushings
High pressure hydraulic equipment