Prodsuct Introdsuction
2A11 aluminum alloy is the earliest application of hard aluminum, generally known as standard hard aluminum, with medium strength, in annealing, rigid quenching and heat state plasticity is still good, heat treatment is enhanced, in quenching and natural aging state, use in the state of quenching, spot welding is good, gas welding and arc welding have a crack tendency;
Chemical Composition
| Si | Fe | Cu | Mn | Mg | Ni |
| 0.7 | 0.7 | 3.8-4.8 | 0.4-0.8 | 0.4-0.8 | 0.1 |
| Zn | Ti | Other each | Other total | Al. | |
| 0.7Fe Ni | 0.3 | 0.15 | 0.05 | 0.1 | Remainder |
Mechanical Properties
| Grade | Temper | Diameter /mm | Tensile Strength Rm/MPa | Yield Strength Rp0.2/MPa | Elongation/% |
| 2A11 | T1, T4 | ≤150 | 370 | 215 | 12 |
Heat treatment specifications
1)Uniformization of annealing: heating 480 to 495 degrees C;
2)Complete annealing: heating 390 to 430 degrees C;
3)Rapid annealing: heating 350 to 370 degrees C;
4)Quenching and aging: quenching 495 to 510 degrees C, water-cooled;