Cast C89833
C89833 is a C836 lead-free replacement alloy. C89833 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: C89833 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, impellers, pumps
Chemical composition
| Cu% | Pb% | Sn% | Zn% | Fe% | P% | Ni%1 | Al% | Bi% | S% | Sb% | Si% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 86.00-91.00 | 0.09 | 4.00-6.00 | 3.00-6.00 | 0.30 | 0.05 | 1.00 | 0.005 | 1.70-2.70 | 0.08 | 0.25 | 0.005 |
¹Ni value includes Co.
Note: Cu + sum of named elements, 99.0% min. Single values represent maximums.
Machinability
| Copper alloy UNS no. | Machinability rating | Density (lb / in³ at 68°F) |
|---|---|---|
| C89833 | 81 | 0.317 |
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 | 60 | |
Physical properties
| US Customary | Metric | |
|---|---|---|
| Melting point - liquidus | 1877 °F | 1025 °C |
| Melting point - solidus | 1454 °F | 790 °C |
| Density | 0.317 lb/in³ at 68 °F3 | 8.78 gm/cm³ at 20 °C |
| Specific gravity | 8.78 | 8.78 |
| Electrical conductivity | 17.8% IACS at 68 °F | 0.103 MegaSiemens/cm at 20 °C |
| Thermal conductivity | 41 Btu/sq ft/ft hr/°F at 68 °F | 71 W/m at 20 °C |
| Coefficient of thermal expansion 68-392 | 13 · 10-6 per °F (68-392 °F) | 22.5 · 10-6 per °C (20-200 °C) |
| Specific heat capacity | 0.085 Btu/lb/°F at 68 °F | 356.1 J/kg at 20 °C |
| Modulus of elastic in tension | 15500 ksi | 106869 MPa |
Fabrication properties
| Technique | Suitability |
|---|---|
| Soldering | Excellent |
| Brazing | Good |
| Oxyacetylene welding | Not recommended |
| Gas shielded arc welding | Not recommended |
| Coated metal arc welding | Poor |
| Machinability rating | 81 |
Fabrication properties provided by CDA