In recent years, 7003 alloys have become more and more widely used. At present, 7003 T651 T7531 extruded aluminum round bar is widely used as a turret and armor structure. 7003 is used in freezing containers, cryogenic equipment and storage boxes, fire pressure equipment, equipment, armor plates, and missile devices.
Composition of 7003 T651 T7531 extruded aluminum round bar
| Element | Si | Fe | Cu | Mn | Cr | Mg | Zn | Ti | Al |
| 7A04 | ≤0.3 | ≤0.4 | ≤0.1 | 0.1-0.4 | 0.15-0.25 | 2.3-3.3 | - | ≤0.1 | Rem |
