Bronze
Bronze is an alloy of copper and tin, but in addition to tin zinc, lead, iron, silver and, more recently manganese and other metals, are added.
Bronze – basic division
The best known types of bronze are:
- tin bronze – Tin bronze is an alloy containing up to 12% tin. The corrosion resistance of tin bronzes is good, almost as good as copper. Tin bronze is used in the foundry industry and for the production of plain bearings.
- aluminium bronze – aluminium bronze is an alloy with an aluminium content of up to 10%. Aluminium bronze has a high resistance to acids and alkalis and is therefore used in aggressive environments. Aluminium bronze is also used to make pipes and taps for superheated steam.
- beryllium bronze – beryllium bronze is bronze with beryllium content up to 2%. This bronze is used for springs operating in corrosive environments, for valves of alkaline pumps, for balls of corrosion-resistant ball bearings (about 2% Be + Ni), for tools that must not spark on impact (about 2% Be), for highly stressed electrodes of spot and seam welders, etc.
- silicon bronze – silicon bronze is an alloy with silicon content up to 4%. Known as a highly durable alloy, it has several important factors including high conductivity, excellent corrosion resistance to seawater, gases, wastewater and atmospheric conditions. Silicon bronze has good hot and cold ductility, resists sulphuric acid (H2SO4), hydrochloric acid (HCl) and some alkalis. It also has good mechanical properties and can be used as a replacement for tin bronzes.
- red bronze – red bronze is an alloy of copper, tin, lead and zinc. It is used exclusively for foundry purposes. The added lead improves machinability. Red bronze is intended for the production of castings used where grey cast iron is not suitable due to low corrosion resistance.
- lead bronze – lead bronze is an alloy of copper, tin and lead, which is usually at a maximum of about 38%. Sometimes nickel, zinc or manganese is added to improve the uniformity of the structure. Lead bronze is mainly used as a bearing metal, where it is required that the lead is finely dispersed in the solid copper-bronze base.
What bronze can we supply you with?
All of the above bronze materials can be obtained in our e-shop or by order in various profiles. If you do not find exactly what you need in our e-shop, please contact us and we will do our best to meet your special requirements.
Bronze of various compositions is supplied as sheet (strips) or bars of circular, square and rectangular cross-section, or as hexagonal.
Bronze machining
Modern CNC machine tools are available on our company premises, which are ready for the machining of bronze materials produced by us. The workpiece size is max. 600 kg handling weight. All bronze machining services are provided to a high specification according to the highest ISO 9001:2015 standards.