CZ122
DESCRIPTION
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 |
From |
To |
UTS Min (N/mm²) |
PS Min |
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 |
70 |
350 |
- |
28 |
- |
- |
| Square (A/F) |
3 |
18 |
380 |
- |
25 |
- |
- |
| 18 |
40 |
380 |
- |
25 |
- |
- |
| 40 |
60 |
350 |
- |
28 |
- |
- |
| Rectangle (Thickness) |
3 |
18 |
380 |
- |
25 |
- |
- |
| 18 |
40 |
380 |
- |
25 |
- |
- |
| 40 |
50 |
350 |
- |
28 |
- |
- |
| PHYSICAL PROPERTIES |
| Physical Properties |
Metric |
English |
| Density |
8.40 g/cc |
0.303 lb/in3 |
| CTE, linear |
26.0 ᶙm/m-˚C |
14.4 ᶙin/in-˚F |
| Specific Heat Capacity |
0.380 J/g-˚C |
0.0908 BTU/lb-˚F |
| Thermal Conductivity |
113 W/m-K |
784 BTU-in/hr-ft²-˚F |
| Melting Point |
880-900 ˚C |
1620 – 1650 ˚F |
| Solidus |
880 ˚C |
1620 ˚F |
| Liquidus |
900 ˚C |
1650˚F |
| FABRICATION PROPERTIES |
| Forming |
Suitability |
| Machinability (CuZn39Pb3 = 100 %) |
95.00% |
| Capacity for Being Cold Worked |
Poor |
| Capacity for Being Hot Worked |
Excellent |
TYPICAL USES
- Architecture
- Builders Hardware
