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Item # BB04C032036, B04 Continuous Cast Bronze Cored Bars

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B04 is a “GREEN” non-leaded alloy
Copper-Bismuth Bronze C89835 Federalloy III (932 Version)

Bunting continuous cast bronze bars of B04 give superior quality and performance. Continuous casting achieves a high density grain structure, free of porosity, resulting in a reduction of tool wear and component rejects.
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.

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: Continuous 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.




 Specifications   

Nominal Size I.D.
4 in

Nominal Size O.D.
4 1/2 in

I.D. Min
3.8910 in

I.D. Max
3.9530 in

O.D. Min
4.5550 in

O.D. Max
4.5710 in

Min. Temperature
-450 ºF

Max. Temperature
500 ºF

P Value (Max.)
4000

V Value (Max.)
500

PV Value (Max.)
75000