Wrought alloy for a bearing material

Abstract

A wrought alloy for a bearing material for use as valve guide or in turbochargers of internal-combustion engines operated with ethanol-containing fuels The composition of the wrought alloy is as follows in wt%: Zn: 25.0 - 34.0%; Fe: 0.8 - 1.2%; Sn: 0.8 - 1.2%; Al: 1.3 -1.7%; Si: 0.2 - 0.45%; and Pb: up to 0.1%, with the balance being copper and unavoidable impurities The sum total of all elements not belonging to the group of the elements copper, zinc, iron, tin, aluminum and silicon is at most 0.3 wt%. The alloy has a microstructure including precipitates in the form of silicides with a fraction of 0.5 to 2.0 vol%.

Dependencies are inferred from the claim text.