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C89835 BISMUTH BRONZE
Federalloy III Lead-Free Bearing Bronze
The values listed above represent reasonable approximations suitable for general engineering use. Due to commercial variations in composition and to manufacturing limitations, they should not be used for specification purposes. See applicable ASTM specification references.
C89835 Bismuth Bronze is a C93200, C83600 and C84400 lead-free replacement alloy. Bismuth bronze is used as a lead-free alternative in fittings, bushings and bearings, valued for its machinability and non-toxicity, replacing traditional leaded bronzes. Bismuth bronze offers excellent machinability, rivaling traditional leaded bronzes by using bismuth as a lead-free additive to provide lubrication, allowing for faster cutting, reduced tool wear, and easier fabrication of complex parts like gears and fittings, meeting strict regulations for potable water applications. While machinability ratings are high (often 80-90% or 70-85%), it's slightly less than some pure tin bronzes but a great choice for lead-free demands in plumbing, pumps, and bearings. C89835 Bismuth Bronze Conforms to Federalloy III, Bunting B-04 ROHS Compliant






