2A97 aluminum lithium plate sheet is a light-weight, high-strength and corrosion-resistant metal structure material. It has very broad application prospects in the aviation and aerospace fields. For every 1% of lithium added to the alloy, the density is reduced by 3%. Using aluminum-lithium alloy instead of the conventional aviation aluminum alloy can reduce the structural quality by 5%~15%, and the elastic modulus Increased by 10~16%, stiffness by 15%~20%, to achieve lightweight aviation, aerospace weapons and equipment, to meet its high-precision, ultra-long-range, ultra-high-speed strike development needs.
Features of
2A97 aluminum lithium plate sheet:
* Low density, for every 1% of lithium added, the density is reduced by 3%, the carrier is reduced by 1kg, and the launch cost is saved by about 20,000 US dollars
* High specific modulus and high specific strength, replacing conventional high-strength aluminum alloy can reduce the structural quality by 10%-20%, increase the elastic modulus by 6%, and increase the rigidity by 15%-20%
* Excellent corrosion resistance
* Good thermal conductivity and electrical conductivity
Good processing and formability (suitable for laser beam welding, friction stir welding, aging forming)
Physical property of
2A97 aluminum lithium plate sheet:
|
Alloy |
Density ρ/g cm-3 |
Tension strength Rm/MPa |
Yield strength Rpo2/Mpa |
Elongation A/% |
Fracture toughness KⅠC/MPa |
Elastic modulus E/GPa |
|
2A97 aluminum lithium plate sheet |
2.70 |
510 |
450 |
8.0 |
27 |
75.0 |
Application of 2A97 aluminum lithium plate sheet
|
Alloy |
Type |
Application |
|
2A97 |
Aluminum lithium plate sheet |
It is a newly developed aluminum-lithium alloy material with completely independent intellectual property rights in China. It is equivalent to the strength and toughness of 7050-T7451 thick plate, with a density of 5% and a modulus of elasticity of 7%. It can replace 7050 for the manufacture of aircraft main load-bearing structural parts. The weight loss effect is outstanding. |
Dimension of 2A97 aluminum lithium plate sheet:
|
Type |
Dimension |
|
Specs |
Slab |
Ф60mm×350mm，Ф90mm×350mm，Ф240mm×400mm，Ф400mm×800mm，800mm×600mm×200mm etc. |
|
Extrusion flat bar |
60mm×5mm，80mm×7mm，220mm×26mm，250mm×40mm etc. |
|
Extrusion round bar |
Φ9.5mm，φ12mm，φ26mm，φ30mm，Φ60mm，φ100mm etc. |
|
Forged plate |
55mm×400mm×600mm，80mm×400mm×500mm，110mm×350mm×400mm etc. |
|
Forged round bar |
Ф30mm-Ф400mm |
|
Rolled sheet size |
sheet（0.5-45mm）thickness ×1200mm width |
|
Type |
Dimension |
