C89835 – Lead-Free Replacement for C932, C836, C844

Manufacturer of Custom Machined Parts

Cast C89835

C89835 is a C932, C836 and C844 lead-free replacement alloy and is offered as a standard-stocked product. Randall Bearings maintains an inventory of this alloy numbering over 100 items and in sizes up to 5.0" O.D. C89835 supports the market demand for lead-free material and compliance with the S. 3874: Reduction of Lead in Drinking Water Act (effective January 2014).

Information

PRODUCT DESCRIPTION: Bismuth Tin Bronze
SOLIDS: 1/2” to 10” O.D.
TUBES: 1 1/8” to 9” O.D.
RECTANGLES: Up to 15”
STANDARD LENGTHS: 105”
SHAPE/FORM: semi-finished, mill stock or near-net shapes, anode, bar stock, billet/bloom, squares, hex, plate, profile or structural shape, flats/rectangular bar
COMPLIANCE: C89835 is compliant with key legislation including (1) Federal Safe Drinking Water Act 1974 – SDWA, (2) Federal Reduction of Lead in Drinking Water Act 2011 and (3) California AB1953

Typical Uses

PLUMBING: faucets, pump components, pipe fittings, plumbing goods, water pump impellers
INDUSTRIAL: housings, small gears

Chemical Composition

Cu%Pb%Sn%Zn%Fe%P%Ni%1Al%Bi%S%Sb%Si%
85.00-89.000.096.00-7.502.00-4.000.200.101.000.0051.70-2.700.080.350.005

¹Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.0% min. Single values represent maximums.

Machinability

Copper Alloy UNS No.Machinability RatingDensity (lb / in³ at 68°F)
C89835700.321

Mechanical Properties

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 2 in. or 50 mm minBrinell Hardness (500 kg load)Remarks
ksiMPaksiMPa%typical BHN
302071497665

Physical Properties

 US CustomaryMetric
Melting Point - Liquidus1855 °F 1012 °C
Melting Point - Solidus1445 °F 785 °C
Density0.321 lb/in³ at 68 °F38.89 gm/cm³ at 20 °C
Specific Gravity8.898.89
Electrical Conductivity14.5% IACS at 68 °F 0.084 MegaSiemens/cm at 20 °C
Thermal Conductivity38.0 Btu/sq ft/ft hr/°F at 68 °F 65.8 W/m at 20 °C
Coefficient of Thermal Expansion 68-39210 · 10-6 per °F (68-392 °F)17.3 · 10-6 per °C (20-200 °C)
Specific Heat Capacity0.093 Btu/lb/°F at 68 °F389.6 J/kg at 20 °C
Modulus of Elastic in Tension16900 ksi116522 MPa

Fabrication Properties

TechniqueSuitability
SolderingExcellent
BrazingGood
Oxyacetylene WeldingNot Recommended
Gas Shielded Arc WeldingNot Recommended
Coated Metal Arc WeldingNot Recommended
Machinability Rating70

Fabrication Properties provided by CDA

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