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Home » Products » C89835 Bismuth Tin Bronze » C89835 Bismuth Tin Bronze Round
C89835 Lead-Free Bismuth Bronze Round Bar

C89835 Bismuth Tin Bronze Round

Bismuth Tin Bronze Alloy, C89835 is a lead-free replacement for C93200, C84400, and C83600. It is compliant with the “Reduction of Lead in Drinking Water Act”. This lead free alloy is used for faucets, pump components, water pump impellers, and pipe fittings in applications where potable water is concerned. C89835 retains 70% machinability with the addition of bismuth in place of lead. This lead free, bismuth alloy is continuous cast and available in rounds and tube.

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SKU: C89835 Bismuth Tin Bronze Round Category:

Product Description

Bismuth Tin Bronze Alloy, C89835 is a lead-free replacement for C93200, C84400, and C83600. It is compliant with the “Reduction of Lead in Drinking Water Act”. This lead free alloy is used for faucets, pump components, water pump impellers, and pipe fittings in applications where potable water is concerned. C89835 retains 70% machinability with the addition of bismuth in place of lead. This lead free, bismuth alloy is continuous cast and available in rounds and tube.

The “Reduction of Lead in Drinking Water Act”, was passed by Congress on 1/4/11 with an effective date of 1/4/14. The term lead-free as it pertains to C89835, calls out for “not more than a weighted average of .25% lead when used with respect to the wetted surfaces of pipes, pipe fittings, plumbing fittings and fixtures”.

Other terms for this alloy are: C89835, lead free bronze, bismuth bronze, lead-free bismuth bronze, bismuth tin bronze, lead-free bismuth tin bronze.

Related products: C93200; C83600; C84400

C89835 Lead-Free Bismuth Tin Bronze Stock Allowances: Round & Tube

Finished Outside DiameterInside DiameterOutside Diameter
Up to 1.999″ inclusive-0.0190″ to -0.0640″+0.0290″ to + 0.0390″
Over 2″ to 3.999″ incl.-0.0190″ to -0.0640″+0.0340″ to + 0.0440″
Over 4″ to 5″ incl.-0.0470″ to -0.1090″+0.0550″ to + 0.0710″
Over 5″ to 9″ incl.-0.0620″ to -0.1580″+0.0780″ to + 0.1100″
Over 9″ to 12″ incl.-0.0780″ to -0.1820″+0.0940″ to + 0.1340″
Over 12″ to 16″ incl.-0.1020″ to -0.2140″+0.1180″ to + 0.1660″

NOTICE: The weights listed are the best estimates of the actual weights we will ship. They are a combination of the calculated theoretical weights and an average of actual weights. Our weights are conservative to the heavier side but there may be slight variations in weight from bar to bar.

C89835 Lead-Free Bismuth Tin Bronze Reference Specifications

SAEFederal SpecificationMilitary SpecificationIngot NumberCDA
––––C89835

Equivalent specifications are verified and updated annually.
Specifications shown are current as of May 4, 2018.

C89835 Lead-Free Bismuth Tin Bronze Chemical Composition (%)**

CuSnPbZnFeNiSbPSAlBiSi
85.0 – 89.0***6.0 – 7.50.092.0 – 4.00.20 max.1.00* max.0.35 max.0.10 max.0.08 max.0.005 max.1.7 – 2.70.005 max.
Sum of all named elements = 99.0%

C89835 Lead-Free Bismuth Tin Bronze Physical Properties

EnglishMetric
Melting Point – Liquidus1855°F1012°C
Melting Point – Solidus1445°F785°C
Density0.321 lb/in3 at 68°F8.89 gm/cm3 @ 20°C
Specific Gravity8.898.89
Electrical Conductivity14.5% IACS @ 68°F0.084 MegaSiemens/cm@ 20°C
Thermal Conductivity38.0 Btu · ft/(hr · ft2 · °F) @ 68°F65.8 W/m · °K @ 20°C
Coefficient of Thermal Expansion10 · 10-6 per °F (68-392°F)17.3 · 10-6 per °C
(20-200 C)
Specific Heat Capacity0.093 Btu/lb/°F @ 68°F389.6 J/kg · °K @ 293°K
Modulus of Elasticity
in Tension		16,900 ksi116,522 MPa

Physical Properties provided by CDA

C89835 Lead-Free Bismuth Tin Bronze Mechanical Properties

EnglishMetric
Tensile Strength, min.30 ksi207 MPa
Yield Strength, min.14 ksi97 MPa
Elongation in 2 in. or 50 mm, min.6%6%

** Values shown pertain to ASTM B505/505M only. Values for ASTM B271 differ slightly. Contact our QA department for clarification.

* Nickel including Cobalt

*** In determining copper minimum, copper may be calculated as copper plus nickel.

Machinability Rating 70 (Free Cutting Brass = 100)

C89835 Lead-Free Bismuth Tin Bronze Fabrication Practices

SolderingExcellent
BrazingGood
Oxyacetylene WeldingNot Recommended
Gas Shielded Arc WeldingNot Recommended
Coated Metal Arc WeldingNot Recommended

Fabrication Practices provided by CDA

The Physical and Fabrication Properties shown here represent reasonable approximations suitable for general engineering use. Due to commercial variations in compositions and to manufacturing limitations, they should not be used for specification purposes.

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