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 | |
|---|---|
| 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 10⁻⁶ per °F (68 – 572°F) | 14.4 |
| FABRICATION PROPERTIES | |
|---|---|
| Technique | Suitability |
| Machinability Rating | 95.00% |
| Capacity for Being Cold Worked | Poor |
| - | Excellent |
TYPICAL USES
- Architecture
- Builders Hardware