Manufacturer of Custom Machined Parts

Cast C89844

C89844 is a C844 lead-free replacement alloy. C89844 supports the market demand for lead-free material and compliance with the 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: 144”
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: C89844 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: fittings/valves for potable water

Chemical Composition

Cu%Pb%Sn%Zn%Fe%P%Ni%1Al%Bi%S%Sb%Si%
83.00-86.000.203.00-5.007.00-10.000.300.051.000.0052.00-4.000.080.250.005

¹Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.3% min. Single values represent maximums.

Machinability

Copper Alloy UNS No.Machinability RatingDensity (lb / in³ at 68°F)
C89844700.31

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
281931390555

Physical Properties

 US CustomaryMetric
Melting Point - Liquidus1850 °F 1010 °C
Melting Point - Solidus1550 °853 °C
Density0.310 lb/in³ at 68 °F38.58 gm/cm³ at 20 °C
Specific Gravity8.588.58
Electrical Conductivity16.8% IACS at 68 °F 0.095 MegaSiemens/cm at 20 °C
Thermal Conductivity46.7 Btu/sq ft/ft hr/°F at 68 °F 80.9 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 Capacity0.08 Btu/lb/°F at 68 °F335.2 J/kg at 20 °C
Modulus of Elastic in Tension13000 ksi89622 MPa

Fabrication Properties

TechniqueSuitability
SolderingExcellent
Brazing*Good
Oxyacetylene WeldingNot Recommended
Gas Shielded Arc WeldingNot Recommended
Coated Metal Arc WeldingNot Recommended
Machinability Rating70

Fabrication Properties provided by CDA

*Since brazing is performed withing the hot-short range, strain must be avoided during brazing and cooling.

Thermal Properties

TreatmentValue*Time**
Stress Relief500
Solution Treatment0

Thermal Properties provided by CDA

*Temperature is measured in Fahrenheit. **For Stress Relief, Solution Treatment and Annealing - Time is measured in hours/inch of thickness. For Precipitation Heat Treatment - Time is measured in hours.

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