CZ122
CZ122 are the reference materials for hot working. The mean Lead content provides good machinability of the drop-forged part. Because of its, Composition the alloy is also suited for the production of drawn and complex profile.
Chemical Composition
| Elements |
Min (%) |
Max (%) |
| Cu |
56.50 |
58.50 |
| Pb |
1.50 |
2.50 |
| Fe |
- |
0.30 |
| Total Others |
- |
0.70 |
| Zn |
Remainder |
MECHANICAL PROPERTIES ACCORDING TO BS2874 (AS PER TEMPER M)
| Range (mm) |
From |
To |
UTS Min (N/mm²) |
UTS Max (N/mm²) |
PS Min (N/mm²) |
Elongation Min (%) |
Hardness Min |
Hardness Max |
| Round (Dia) |
1.5 |
18 |
380 |
- |
- |
25 |
- |
- |
| 18 |
40 |
380 |
- |
- |
25 |
- |
- |
| 40 |
75 |
350 |
- |
- |
28 |
- |
- |
| Hex (A/F) |
3 |
18 |
380 |
- |
- |
25 |
- |
- |
| 18 |
40 |
380 |
- |
- |
25 |
- |
- |
| 40 |
75 |
350 |
- |
- |
28 |
- |
- |
| Square (A/F) |
3 |
18 |
380 |
- |
- |
25 |
- |
- |
| 18 |
40 |
380 |
- |
- |
25 |
- |
- |
| 40 |
70 |
350 |
- |
- |
28 |
- |
- |
| Rectangle |
Thickness |
3 |
18 |
380 |
- |
- |
25 |
- |
- |
| Thickness |
18 |
40 |
380 |
- |
- |
25 |
- |
- |
| Thickness |
40 |
50 |
350 |
- |
- |
28 |
- |
- |
Physical Properties
| PHYSICAL PROPERTIES |
| Melting Point - Liquidus °F |
1650 |
| Melting Point - Solidus °F |
1620 |
| Thermal Conductivity BTU/ sq ft/ ft hr/ °F at 68°F |
784 |
| Coefficient of Thermal Expansion 68-572 10?? per °F (68 – 572°F) |
14.4 |
Fabrication Properties
| FABRICATION PROPERTIES |
| Technique |
Suitability |
| Machinability Rating |
95.00% |
| Capacity for Being Cold Worked |
Poor |
| - |
Excellent |
