Leaded Bronze – Materials and norms

Leaded Bronze

Leaded bronzes include alloys with a higher lead content (approximately over 10%). The addition of lead softens the material, improves its machinability and most importantly, decreases the coefficient of friction. So this material is especially suitable for bearings (and their housings or shells), which must work with a small amount of lubricant or completely dry. Other surcharges ensure the uniformity of the structure.

Common application comprises: bearings and bearing plates, bushing for high speed and heavy pressure, corrosion resistant castings for underwater use, crank shafts, impellers, steel mill parts, pressure tight castings, pumps, slide guides for steel mills, large ship bearings, fastening nuts, builders hardware (like brackets), acid resistant parts (pump bodies for acid mine water), locomotive bearings, backs for lined journal, freight car bearings, industrial centrifuges, general machine parts, railroad parts (railroad engine castings), wearing material for rod bushings, wearing material for shoes and wedges, soft bushings, etc. 

We supply bronze in the form of bars (round, flat, square, hexagonal, hollow), tubes or sheets. We cut semi-finished products into precise pre-final dimensions using band saws.

Below you will find a selection of the most common material grades we work with. Note for European standards (EN): the prefix CC (e.g. CC492K) indicates castings, CB (e.g. CB492K) indicates ingots, and CW (e.g. CW492K) indicates alloys intended for forming. Note for mechanical properties tables: values ​​may vary depending on the manufacturing process and profile – more precise information for a specific semi-finished product is available on request. 

If you are interested in another grade or alloy, do not hesitate to contact us.