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2090 aluminum lithium alloy sheet plate

2090 aluminum lithium alloy sheet plate

The 2090 alloy is developed to replace the 7075 T6 alloy widely used in the aviation industry. The goal is: the tensile strength is equivalent to that of the 7075 T6 alloy, its density should be 8%, and the elastic modulus should be 10% higher. Production of high strength and medium strength and extruded 2090 alloy for its excellent weldability and mechanical properties at low temperature, 2090 aluminum lithium alloy sheet plate are more than 7075 alloy high temperature fracture toughness; tensile property anisotropy is very strong; peak aging state of the material (T68, T81, T83) had good stability in high temperature but, under aging condition (T84) will take effect of additional hardening is strong; have strong anti fatigue crack growth ability.

2090 aluminum

2090 aluminum alloy

aluminum-lithium alloy 2090

2090-t83 aluminum

aluminum 2090-t86

2090-t83 aluminum

2090 aluminum alloy

aluminum-lithium alloy 2090


Chemical Composition of 2090 Alloy
Alloy Si Fe Cu Mn Mg Cr Li Zn Ag Ti Zr Others Al
Each Total
2090 0.10 0.12 2.4~3.0 0.05 0.25 0.05 0.7~1.0 0.1 0.20~0.70 0.1 0.06~0.14 0.05 0.15 Remainder

Alloy Alloy Series Main Features σb  Value/MPa Working Temperature/℃
2090 Al-Cu-Li-Zr The heat treatment strengthened alloy has different properties and states, such as thin plate, thick plate and extruded parts. The state of sheet metal has O, T3, T31, T62, T83 and T84. Among them, the strength of the T83 state is the highest, similar to 7075 T6. The corrosion resistance and welding performance of 2090 T83 thin plates are better than that of 2024 T3 and 7075 T6 thin plates. The long time air exposure test showed that the 2090 T83 thin plate had superior corrosion resistance. The state of the thick plate is T81 and T84, and the strength of the T81 state is the highest, similar to 7075 T651. The state of the backlog is T86, T3, and T31, with the highest strength of the T86 state, similar to 7075 T6511.
<100

Physical Property of 2090 Alloy
Product and its sheet Thickness/mm Standard Tension Strength Flexible
Direction RP0.2/MPa Rm/MPa 50mm A/ % Direction and KIC or KC KIC or KC
T83
Aluminum sheet

0.8~3.175
AMS 4351 L
L-T
45º
517(517) 530(530) 3(6) L-T(KC) (44)
503 505 5
440 440
T83
Aluminum sheet

3.2~6.32
AMS 4351 L
L-T
45º
483 4
455 5
385
T84
Aluminum sheet
0.8~6.32 AMS Draft D89 L
L-T
45º
455(470) 495(525) 3(5) L-T(KC) 49(71)
415 475 5 T-L(KC) 49
345 427 7
T3
O
7075 T6


L-T
L-T
L
214min 317min 6min
193max 213max 11min
(517) (570) (11) L-T(KC) (71)
T86   Aluminum extruded profile 0.0~3.15
3.175~6.32
6.35~12.65
AMS Draft D88 BE
L
L
L-T
470 517 4
510 545 4
517 550 5
483 525
7075 T7 Aluminum plate
T81 Aluminum plate
13~38 AMS4346 L
L
L-T
(510) (565) (11) L-T(KIC) (27)
483(517) 517(550) 4(8) L-T(KIC) ≥27(11)≥22
470 517 3 L-T(KIC)
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