Alloys Handbook
EN AC-21000
Al Cu4MgTi
High-strength alloy. High hardness and heat resistance, but low corrosion resistance.
Alloy Group
AlCu
Recyclability
100%
Chemical Composition (%)
| Element | Min | Max |
|---|---|---|
| Si | — | 0.20 |
| Fe | — | 0.35 |
| Cu | 4.20 | 5.00 |
| Mn | — | 0.10 |
| Mg | 0.20 | 0.35 |
| Cr | — | 0.05 |
| Ni | — | 0.05 |
| Zn | — | 0.10 |
| Pb | — | 0.05 |
| Sn | — | 0.05 |
| Ti | 0.15 | 0.25 |
| OtherEach | — | 0.05 |
| OtherTotal | — | 0.15 |
Mechanical Properties
| Temper | Method | Rm | Rp0.2 | A% | HBW |
|---|---|---|---|---|---|
| T4 | Sand casting | 300 | 200 | 5 | 90 |
| T6 | Permanent mold | 330 | 220 | 7 | 95 |
Quick Applications
- High-load aircraft parts
- Pistons
- High-temperature parts
Corrosion Resilience
Overall: Fair to Good
freshwater
Excellent
saltwater
Fair
industrial
Good
acidic
Limited