B04 is a “GREEN” non-leaded alloy Copper-Bismuth Bronze C89835 Federalloy III (932 Version)
Solid and cored bars are stocked in 13" increments and 105" lengths, and are available in other lengths and non-standard sizes. Consider bars for use when you need special bearings, bearings for prototypes, or for emergency repairs.
Centrifugal cast large diameter cored bars are also available in 13" lengths as well as made to order sizes and lengths.
Typical Properties: (Not to be used for specification purposes.) Copper: 85.00 – 89.00% Tin: 6.00 – 7.50% Lead: 0.10% max. Zinc: 2.00 – 4.00% Nickel: 0.50 – 1.00% Bismuth: 1.70 – 2.70%
Physical Properties: Centrifugal cast Tensile Strength, PSI:30,000 min. Yield Strength, PSI:14,000 min. Elongation:12% min. Machinability Rating:70. Minimum Operating Temperature:-450°F. Maximum Operating Temperature:500°F.
B04 is used as a no-lead replacement for C93200 material where lead-free material is required. Properties are similar to the C93200 material however; bismuth does not lubricate as well as lead so a constant supply of lubrication is recommended when using this material. Bunting also produces lead-free materials that replace C83600, C84400, C93700, C93800 and C94500 with bismuth alloys.
