Home » Products » Silicon Bronze » Copper Alloy No. C65500 (High Silicon Bronze A)
Silicon Bronze
Copper Alloy No. C65500 (High Silicon Bronze A)
Composition - Percent
|
Nominal |
Minimum |
Maximum |
| Copper |
97 |
Remainder |
| Lead |
- |
- |
0.05 |
| Iron |
- |
- |
0.80 |
| Zinc |
- |
- |
1.50 |
| Manganese |
- |
0.50 |
1.30 |
| Silicon |
3 |
2.80 |
3.80 |
| Nickel |
- |
- |
0.60 |
Nearest Applicable A S T M Specifications
|
|
| Bolts |
F468 |
| Flat Products |
B96, B98, B100, B124, B432 |
| Nuts |
F467 |
| Pipe |
B315 |
| Rod |
B98, B124 |
| Screws |
F468 |
| Shapes |
B98, B124, B283 |
| Studs |
F468 |
| Tube |
B315 |
| Wire |
B99, B105 |
Physical Properties
|
English Units |
C.G.S. Units |
| Melting Point (Liquidus) |
1880°F |
1025°C |
| Melting Point (Soluidus) |
1780°F |
970°C |
| Density |
.308lb / cu in @ 68°F |
8.53 gm / cu cm @ 20°C |
| Specific Gravity |
8.53 |
8.53 |
| Coefficient of Thermal Expansion |
per °F from 68°F to 212°F |
per °C from 20°F to 100°F |
| Coefficient of Thermal Expansion |
per °F from 68°F to 392°F |
per °C from 20°F to 200°F |
| Coefficient of Thermal Expansion |
.0000100 per °F from 68°F to 572°F |
.0000180 per °C from 20°F to 300°F |
| Thermal Conductivity |
21 Btu / sq ft / ft / hr / °F @ 68°F |
0.9 cal / sq cm / cm / sec / °C @ 20°C |
| Electrical Resistivity (Annealed) |
148 Ohms (circ mil / ft) @ 68°F |
24.6 Microhm-cm @ 20°C |
| Electrical Conductivity* (Annealed) |
7.0 % IACS @ 68°F |
.0406 Megmho-cm @ 20°C |
| Thermal Capacity (Specific Heat) |
09 Btu / lb °F @ 68°F |
.09 cal / gm / °C @ 20°C |
| Modulus of Elasticity (Tension) |
15,000 ksi |
10,500 Kg /sq mm |
| Modulus of Rigidity |
5,600 ksi |
3,900 Kg /sq mm |
*Volume Basis
Typical Uses
- Aircraft:
- hydraulic pressure lines
- Hardware:
- bolts, burrs, butts, clamps, cotter pins, hinges, marine hardware, nails, nuts, pole line hardware, screws
- Industrial:
- bearing plates, bushings, cable, channels, chemical equipment, heat exchanger tubes, kettles, piston rings, tanks, rivets, screen cloth and wire, screen plates, shafting
- Marine:
- propeller shafts
Common Fabrication Processes
Blanking, drawing, forming and bending, heading and upsetting, hot forging and pressing, roll threading and knurling, shearing, squeezing and swaging
Fabrication Properties
|
|
| Capacity for Being Cold Worked |
Excellent |
| Capacity for Being Hot Formed |
Excellent |
| Hot Forgeability Rating (Forging Brass = 100) |
40 |
| Hot Working Temperature |
1300-1600°F or 700-875°C |
| Annealing Temperature |
900-1300°F or 475-700°C |
| Machinability Rating (Free Cutting Brass = 100) |
30 |
| Suitability for being joined by: |
|
| Soldering |
Good |
| Brazing |
Excellent |
| Oxyacetylene Welding |
Good |
| Gas Shielded Arc Welding |
Excellent |
| Coated Metal Arc Welding |
Fair |
| Resistance Welding |
| Spot |
Excellent |
| Seam |
Excellent |
| Butt |
Excellent |
