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695 MPa Ultra-High-Strength Aluminum-Lithium Alloy
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Product Overview
Keywords:
695 MPa Ultra-High-Strength Aluminum-Lithium Alloy
Product Details
Product Model: almgcu-17
Product features:
Zhengzhou Light Alloy Institute has successfully developed an ultra-high-strength aluminum-lithium alloy and achieved industrial-scale, mass production—boasting a tensile strength of 695 MPa, a yield strength of 566 MPa, and an elongation rate exceeding 6%!
Product Details:
Zhengzhou Light Alloy Institute has successfully developed an ultra-high-strength aluminum-lithium alloy and achieved industrial-scale, mass production—boasting a tensile strength of 695 MPa, a yield strength of 566 MPa, and an elongation rate exceeding 6%!
Currently, the second-generation Al-Mg-Li alloys—primarily used in aluminum-lithium alloys—are achieving strengths ranging from 400 to 500 MPa, while the third-generation Al-Cu-Li alloys boast strengths between 500 and 600 MPa. Zhengzhou Light Alloy Research has successfully achieved a technological breakthrough in ultra-high-strength aluminum-lithium alloys by employing a novel production process that leverages its own proprietary intellectual property. This innovation has dramatically enhanced the performance of aluminum-lithium alloys, filling a critical gap in China for 700-MPa-class aluminum-lithium alloys under industrial conditions! Compared to traditional 7-series super-hard aluminum alloys like 7075, these advanced alloys offer a 5% reduction in density, along with a 30% increase in tensile strength, a 20% improvement in yield strength, and a 7% boost in elastic modulus. As a result, they can effectively replace existing high- and ultra-high-strength aluminum alloys, making them particularly valuable for weight-reduction efforts in aerospace and aviation applications!
Aluminum-lithium alloy, as a lightweight yet high-strength metallic structural material, holds tremendous potential for applications in the aerospace industry. Currently, in the aerospace sector, "every gram counts"—for every kilogram of weight reduced on a rocket, launch costs can be slashed by up to $20,000; similarly, reducing a missile's weight by 1 kg can extend its range by an impressive 15 km. Adding just 1% lithium to aluminum alloys reduces density by 3% while boosting the elastic modulus by 6%. By replacing conventional aluminum alloys with aluminum-lithium alloys, engineers can achieve a 5% to 15% reduction in structural weight and a corresponding 15% to 20% improvement in stiffness—yielding immediate and significant weight savings. This not only enhances the payload capacity of aerospace vehicles but also delivers substantial economic benefits and strategic advantages.
The newly developed ultra-high-strength aluminum-lithium alloy boasts four key advantages: low density, high modulus, exceptional strength, and the ability for large-scale industrial production. These attributes are largely attributed to the advanced nature of the manufacturing process. Through continuous research, development, and optimization of its production techniques, Zhengzhou Light Alloy Technology Research Institute Co., Ltd. has successfully implemented a "full-vacuum melting method," effectively addressing critical challenges in the aluminum-lithium alloy casting process—such as hydrogen absorption, oxide slag formation, compositional segregation, and severe shrinkage porosity. This innovative approach ensures the production of high-purity, refined, and premium-quality alloy ingots, laying a robust foundation for subsequent deformation processes aimed at creating high-performance aluminum-lithium alloy products.
Currently, the company can supply in bulk a variety of aluminum-lithium alloy products, including plates, strips, foils, tubes, bars, wires, and forgings—such as grades 1420 and 2195. Additionally, for pre-research aluminum-lithium alloy models, the company boasts end-to-end development capabilities, from design drawings to delivering finished components (covering processes like melting and casting, machining and forming, heat treatment, precision machining, surface treatments, and quality inspection).
Zhengzhou Light Alloy Technology Research Institute Co., Ltd. adheres to the philosophy of "Guiding the future with technology, developing high-performance non-ferrous alloys that are lighter, stronger, and more cost-effective, thereby continuously delivering value to our customers." Committed to pioneering new materials, technologies, and products essential for national defense and military-industrial development, the institute focuses on the research, innovation, and production of premium-quality, lightweight, high-strength alloy materials such as aluminum-lithium, magnesium-lithium, and magnesium-rare earth alloys—empowering China’s manufacturing sector to reduce weight and fueling the robust growth of China’s aerospace industry!
Application Areas
Military Equipment
Aerospace
3C Consumer Electronics
Smart Robots
Low-Altitude Economy
New Energy Vehicles
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