Alloys Handbook
EN AC-21200
Al Cu5
High-copper alloy. Excellent machinability and heat resistance.
Alloy Group
AlCu
Recyclability
100%
Chemical Composition (%)
| Element | Min | Max |
|---|---|---|
| Si | — | 0.10 |
| Fe | — | 0.20 |
| Cu | 4.00 | 5.00 |
| Mn | 0.20 | 0.50 |
| Mg | 0.15 | 0.50 |
| Cr | — | 0.05 |
| Ni | — | 0.05 |
| Zn | — | 0.10 |
| Pb | — | 0.03 |
| Sn | — | 0.03 |
| Ti | — | 0.05 |
| OtherEach | — | 0.05 |
| OtherTotal | — | 0.15 |
Mechanical Properties
| Temper | Method | Rm | Rp0.2 | A% | HBW |
|---|---|---|---|---|---|
| T5 | Permanent mold | 240 | 150 | 2 | 85 |
| T6 | Permanent mold | 320 | 210 | 4 | 95 |
Quick Applications
- Cylinder heads
- Diesel engine parts
Corrosion Resilience
Overall: Fair to Good
freshwater
Excellent
saltwater
Fair
industrial
Good
acidic
Limited