Forging Brass
Forging Brass is an alloy of copper and Zinc, in properties which can be varied to achieve varying mechanical and electrical properties. It is a substitution alloy: atoms of the two constituents may replace each other within the same crystal structure. Forging brass alloys have good forgeability and can be easily shaped. Forging brass has high thermal conductivity and have excellent hot forgeability properties. They are available in the form of rod.
Different Grades, Chemical Composition, Physical and Fabrication Properties of Forging Brass
| Product |
Forging Brass |
| SPECIFICATION |
IS-3488 CZ-122 CUZn42Pb2 ASTM-B124 UNS-C37700 |
IS-6912 FLB |
LPG Valves IS-6912 BS:218 (Modified) |
|
| Chemical Composition |
% |
% |
% |
| Copper |
56.00 - 60.00 |
56.50 - 60.00 |
56.50 - 60.00 |
| Lead |
1.00 - 2.00 |
0.60 - 2.00 |
1.00 - 1.50 |
| Tin |
- |
- |
- |
| Iron |
0.30 Max. |
0.30 Max. |
0.30 Max. |
| Manganese |
- |
0.20 Max. |
0.50 Max. |
| Aluminium |
- |
- |
- |
| Zinc |
Balance |
Balance |
Balance |
| Impurities |
0.50 Max. |
0.25 Max. |
0.40 Max. |
|
| Physical Properties |
|
| Tensile (Kgs/mm2) |
35 Min. |
32 Min. |
45 Min. |
| Elongation-5.65 √A |
25% Min. |
20% Min. |
20% Min. |
| Izod (kgfm) |
- |
- |
2.20 Min. |
|
| Fabrication Properties |
|
| Cold Working |
Poor |
Poor |
Poor |
| Hot Forming |
Excellent |
Excellent |
Excellent |
| Machinability |
80% |
80% |
80% |
| Soldering |
Excellent |
Excellent |
Excellent |
| Brazing |
Good |
Good |
Good |
| Forging |
100% |
100% |
100% |
| Welding |
- |
- |
- |
| Bending / Revetting |
- |
- |
- |
Forging Brass is mainly used for manufacturing forged components and pressing materials like knobs, hardware’s, handles, valve and fuse bodies, brass battery terminal connectors, valve components, defence components etc.
