Naval Brass
Naval brass alloy comprises roughly 59% - 64% copper, 35% - 40% zinc, and 1% tin, with a trace of lead. The result is a metal with high corrosion resistance. It can also endure a broad range of temperature changes. Its adaptability for cold and hot forming operations, bending, soldering, and welding, among other things, makes it ideal for various applications.
Different Grades, Chemical Composition, Physical and Fabrication Properties of Naval Brass
| Product |
Lead Free Brass |
| SPECIFICATION |
IS 291 Grade I ASTM UNS-C46400 46700 |
IS 291 Grade II ASTM UNS-C48200 |
|
| Chemical Composition |
% |
% |
| Copper |
61.00 - 64.00 |
59.00 - 62.00 |
| Lead |
0.20 Max |
0.50 - 1.00 |
| Tin |
1.00 - 1.50 |
0.50 - 1.00 |
| Iron |
0.10 Max. |
0.10 Max. |
| Manganese |
- |
- |
| Aluminium |
- |
- |
| Zinc |
Balance |
Balance |
| Impurities |
0.25 Max. |
0.20 Max. |
|
| Physical Properties |
|
| Tensile (Kgs/mm2) |
40 Min. |
40 Min. |
| Elongation-5.65 √A |
20% Min. |
15% Min. |
| Izod (kgfm) |
- |
- |
|
| Fabrication Properties |
|
| Cold Working |
Fair |
Poor |
| Hot Forming |
Excellent |
Good |
| Machinability |
30% |
50% |
| Soldering |
Excellent |
Excellent |
| Brazing |
Excellent |
Good |
| Forging |
90% |
90% |
| Welding |
Good |
- |
| Bending / Revetting |
- |
- |
Naval Brass is suitable for different fittings used on a deck of a boat and marine
