- Bronze Family: Bismuth Tin Bronze
- Solids: 1/2" to 10" OD
- Tubes: 1 1/8" to 9" OD
- Rectangles: Up to 15" wide
- Type: Copper alloy
- Shape/Form: Bar stock, flats/rectangular bar, hex, squares
- Benefits: Good machinability, unique Federalloy® technology enables production engineers to tailor any Federalloy® alloy to their own requirements, good polishing and plating characteristics, better castability at lower temperatures which results in lower costs to end users, assures that elongation approximates its leaded alloy counterparts, "no burn-in" feature enables Federalloy® castings to have more definition which results in crisper markings and more legible identification numbers, superior microstructural characteristics, improved finish requires less shot blast which reduces cleaning costs and shortens cycle times.
- » Download C89831 Spec Sheet (.pdf)
Typical Uses
- High Speed, Heavy Pressure Bearings, Corrosion Resistant, Pressure Tight Castings, Impellers, Pumps
Similar or Equivalent Specification
| CDA |
ASTM |
ASARCON |
SAE |
AMS |
Federal |
Ingot# |
Military |
Other Desc |
| C89831 |
|
|
|
|
FEDERALLOY® I-844 |
|
|
|
Chemical Composition
| Cu% |
Sn% |
Pb% |
Zn% |
Fe% |
Ni% |
Sb% |
P% |
S% |
Al% |
Mn% |
Si% |
Bi% |
|
Note: Single values represent maximums.
|
| 87.00-91.00 |
2.70-3.70 |
0.10 |
2.00-4.00 |
0.30 |
1.00 |
0.25 |
0.05 |
0.08 |
0.005 |
N/A |
0.005 |
2.70-3.70 |
Mechanical Properties
| Tensile Strength (min) |
Yield Strength (at .5% extention under load min) |
Elongation (in 2in. or 50mm min, %) |
Hardness (typical Bhn - 500kg) |
Remarks |
| Ksi |
MPa |
Ksi |
MPa |
|
|
|
| 29 |
|
13 |
|
5 |
55 |
|
Machinability
| Alloy |
Rating |
Density |
| C89831 |
85 |
0.318 |
Physical Properties (provided by CDA)
| |
US Customary |
Metric |
|
|
| Melting Point - Liquidus |
1893 F |
1034 C |
| Melting Point - Solidus |
1518 F |
825 C |
| Density |
0.318 lb/in3 at 68 F |
8.81 gm/cm3 @ 20 C |
| Specific Gravity |
8.810 |
8.81 |
| Electrical Conductivity |
2038 %IACS @ 68 F |
0.121 MegaSiemens/cm @ 20 C |
| Thermal Conductivity |
500 Btu · ft/(hr · ft2·°F)at 68F |
86.6 W/m · °K at 20 C |
| Coefficient of Thermal Expansion |
100 ·10-6 per oF (68-212 F) |
17.3 ·10-6 per °C (20-100 C) |
| Specific Heat Capacity |
0.092 Btu/lb/°F at 68 F |
385.5 J/kg · °K at 293 K |
| Modulas of Elasticity in Tension |
13700 ksi |
94400 MPa |
Fabrication Properties (provided by CDA)
| Joining Technique |
Suitability |
| Soldering |
Excellent |
| Brazing |
Good |
| Oxyacetylene Welding |
Not Recommended |
| Gas Shielded Arc Welding |
Not Recommended |
| Coated Metal Arc Welding |
Poor |
|
