2219 aluminum bars is used for aerospace rocket welding oxidant tank, supersonic aircraft skin and structural parts, operating temperature of -270~300 degrees Celsius.Good weldability, high fracture toughness, T8 state has a high resistance to stress corrosion cracking.2219 aluminum bars is used for welding aerospace detonator oxidizer and fuel tank, supersonic aircraft shell and structural component materials, in the temperature range of 270-300°C (-450-600 °F), easy to weld and practical, with strong fracture toughness, T8 state can withstand high stress corrosion crack .
Composition of 2219 aluminum bars
| Element | Si | Fe | Cu | Mn | V | Mg | Zn | Ti | Al |
| 2219 | ≤0.2 | ≤0.3 | 5.8-6.8 | 0.2-0.4 | 0.05~0.15 | ≤0.02 | ≤0.10 | 0.02~0.10 | Rem |
