2219 aluminum plate sheet is an aluminum alloy with copper as the main alloy element. 2219 aluminum alloy, American wrought aluminum and aluminum alloy. 2219 aluminum alloy has poor corrosion resistance, good machining performance, poor brazing, easy to arc welding and spot welding. It is suitable for structural parts and high-strength weldments working at 315 ℃. 2219 aluminum alloy is mainly used for welding oxidizer tank of aerospace rocket, skin and structural parts of supersonic aircraft. It has good weldability, high fracture toughness and high resistance to stress corrosion cracking in T8 state.
2219 aluminum plate sheet is a kind of heat-treatment strengthening deformation aluminum alloy. After solution aging treatment, the mechanical properties of aluminum alloy are greatly improved. Plastic deformation is accompanied by deformation strengthening of aluminum alloy. 2219 aluminum alloy is mainly used in the production of melon flap structure of space rocket fuel storage tank in China, and the scraping parts are mainly made of large aluminum alloy plates by drawing.
2219 aluminum plate sheet status: O, T31, t351, T37, T42, T62, T81, t851, T87
Common temper: O, t351, t851
2219 aluminum plate, corresponding domestic brand of China: ly19
2219 aluminum alloy with copper as the main alloy element.
2219 aluminum sheet
Si:0.20
Fe:0.30
Cu:5.8~6.9
Mn：0.20~0.40
Mg:0.02
Zn:0.10
Ti：0.29~0.10
Zr：0.10~0.25
V：0.05~0.25
Other single: 0.05, 0.15 margin
Alloy status: artificial aging after T4 solution treatment
It is applicable to products that are not subject to cold processing and artificial aging after solution heat treatment
2219 aluminum plate sheet characteristics and Application
|
Temper |
Tension strength(Mpa) |
Yield strength(Mpa) |
Elongation % |
Hardness(HB) |
Modulus of elasticity |
Density g/cm |
|
O |
170 |
75 |
18 |
45 |
72 |
2.83 |
|
T351 |
354 |
231 |
16 |
96 |
72 |
2.83 |
|
T851 |
448 |
340 |
10 |
123 |
72 |
2.83 |
2219 aluminum plate sheet high strength Al Cu alloy has high strength, good low temperature and high temperature properties, and excellent weldability, but poor corrosion performance. Used for propeller and magnetic drum. Application: space rocket welding oxidant tank, supersonic aircraft skin and structural parts, operating temperature of - 270 ℃ to 300 ℃. It has good weldability, high fracture toughness and high resistance to stress corrosion cracking in T8 state.
