2A12 is the typical hard aluminum alloy in the Al-Cu-Mg system, temper T351, its composition is reasonable, comprehensive performance is better, the usage amount is the largest in hard aluminum. High strength, a certain heat resistance, strength is higher than the 7075 alloy. Thermal state, annealing and new quenching state of forming performance are better, heat treatment strengthening effect is remarkable. Corrosion resistance is poor, but cladding with the pure aluminum can be effectively protected; easy to come with the cracks in welding, but using of the special technology can be welded, can also riveting.
Chemical Composition of 2A12 -T351 ALUMINIUM SQUARE BAR / BLOCK
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Zr | Fe+Ni | Other | Al |
| 2A12 | 0.50 | 0.50 |
3.8- 4.9 |
0.30-0.90 |
1.2- 1.8 |
- | 0.30 | 0.15 | - | 0.5 | 0.1 | Remainder |
Mechanical Property of 2A12 -T351 ALUMINIUM SQUARE BAR / BLOCK
Tensile strength（Mpa）≥ 440
Yield Strength（Mpa）≥ 290
Elongation（％）≥ 13
Product Features of 2A12 -T351 ALUMINIUM SQUARE BAR / BLOCK
1. Good overall performance
2. Better thermal stability
3. Good mechanical processing performance
4. Good polishing performance
Typical Usage of 2A12 -T351 ALUMINIUM SQUARE BAR / BLOCK
2A12 -T351 ALUMINIUM SQUARE BAR / BLOCKis mainly used for aviation industry, mechanical engineering, traffic engineering, automotive, military industry,etc.
