Producer of custom machined parts, specializing in bronze and other popular alloys for your manufacturing needs.
LEAD-FREE | LOW-LEAD
C89835 Lead-Free Replacement for C932, C836, C844
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%1
Al%
Bi%
S%
Sb%
Si%
85.00-89.00
0.09
6.00-7.50
2.00-4.00
0.20
0.10
1.00
0.005
1.70-2.70
0.08
0.35
0.005
MACHINABILITY
Copper Alloy UNS No.
Machinability Rating
Density(lb / in 3 at 68 °F)
C89835
70
0.321
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
30
207
14
97
6
65
PHYSICAL PROPERTIES
US Customary
Metric
Melting Point - Liquidus
1855 °F
1012 °C
Melting Point - Solidus
1445 °F
785 °C
Density
0.321 lb/in3 at 68 °F
8.89 gm/cm3 at 20 °C
Specific Gravity
8.89
8.89
Electrical Conductivity
14.5% IACS at 68 °F
0.084 MegaSiemens/cm at 20 °C
Thermal Conductivity
38.0 Btu/sq ft/ft hr/°F at 68 °F
65.8 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
0.093 Btu/lb/°F at 68 °F
389.6 J/kg at 20 °C
Modulus of Elastic in Tension
16900 ksi
116522 MPa
FABRICATION PROPERTIES
Technique
Suitability
Soldering
Excellent
Brazing
Good
Oxyacetylene Welding
Not Recommended
Gas Shielded Arc Welding
Not Recommended
Coated Metal Arc Welding
Not Recommended
Machinability Rating
70


SPEC SHEET


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