Info

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: C89831 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

Industrial: corrosion-resistant/pressure-tight castings, high-speed/heavy-pressure bearings, impellers, pumps

Chemical Composition

Cu%1	Pb%	Sn%	Zn%	Fe%	P	Ni%2	Al%	Bi%	S%	Sb%	Si%
10.01-2.0% as any single or combination of Ce La or other rare earth(x) elements as agreed upon. (x)ASM International definition: one of the group of chemically similar metals with atomic numbers 57 through 71 commonly referred to as lanthanides 2Ni value includes Co. Note: Cu + Sum of Named Elements, 99.0% min. Single values represent maximums.
87.00- 91.00	0.10	2.70- 3.70	2.00- 4.00	0.30	0.05	1.00	0.005	2.70- 3.70	0.08	0.25	0.005

Machinability

Copper Alloy UNS No.	Machinability Rating	Density (lb/in3 at 68 °F)
C89831	85	0.318

Mechanical Properties

Tensile Strength, min		Yield Strength, at 0.5% Extension Under Load, min		Elongation, in 2 in. or 50 mm min	Brinell Hardness (500 kg load)	Remarks
ksi	MPa	ksi	MPa	%	typical BHN
29	200	13	90	5	55

Physical Properties

	US Customary	Metric
Physical Properties provided by CDA
Melting Point - Liquidus	1893 °F	1033 °C
Melting Point - Solidus	1518 °F	825 °C
Density	0.318 lb/in3 at 68 °F	8.81 gm/cm3 at 20 °C
Specific Gravity	8.81	8.81
Electrical Conductivity	20.38% IACS at 68 °F	0.117 MegaSiemens/cm at 20 °C
Thermal Conductivity	50 Btu/sq ft/ft hr/°F at 68 °F	86.6 W/m at 20 °C
Coefficient of Thermal Expansion 68-392	10 · 10-6 per °F (68-392 °F)	17.3 · 10-6 per °C (20-200 °C)
Specific Heat Capacity	0.092 Btu/lb/°F at 68 °F	385.4 J/kg at 20 °C
Modulus of Elasticity in Tension	13700 ksi	94458 MPa

Fabrication Properties

Technique	Suitability
Fabrication Properties provided by CDA
Soldering	Excellent
Brazing	Good
Oxyacetylene Welding	Not Recommended
Gas Shielded Arc Welding	Not Recommended
Coated Metal Arc Welding	Poor
Machinability Rating	85

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C89831

Lead-Free Replacement for C844

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