The metal backbone that holds up the sky, the strategic cornerstone for building space dreams.

The International Space Station's cabin connection structures are constructed from austenitic stainless steel, which maintains structural stability in extreme temperature swings from -180°C to 150°C

From the fuselage skins of supersonic fighter jets to the core modules of space stations, stainless steel, with its unwavering properties of high temperature resistance, extreme resistance, and high strength, has become an indispensable key material in the aerospace industry. This metal, capable of withstanding airflow shock at altitudes of 10,000 meters and withstanding the drastic temperature fluctuations in the vacuum of space, transcends environmental limitations with its exceptional performance, safeguarding humanity's quest for exploration of the skies and space.

In aviation, stainless steel is the guardian of flight safety. The engine combustion chambers of military fighter jets must operate continuously at temperatures exceeding 1,000 degrees Celsius. Special stainless steel, with its excellent heat and fatigue resistance, ensures complete fuel combustion and prevents component deformation. The landing gear systems of civilian airliners are manufactured from high-strength martensitic stainless steel, boasting a compressive strength exceeding 1800 MPa. It can support hundreds of tons of fuselage weight and withstand the immense impact forces during takeoff and landing. Furthermore, critical aircraft components like hydraulic lines and navigation system casings rely on the corrosion resistance of stainless steel, preventing damage to equipment caused by high-altitude humidity and airflow, ensuring stability and reliability throughout the flight.

In space exploration, stainless steel is a "challenger in the space environment." The International Space Station's cabin connection structures are constructed from austenitic stainless steel, which maintains structural stability in extreme temperature swings from -180°C to 150°C, while also protecting against cosmic rays and micrometeorite impacts. The propellant tanks of launch vehicles are made of cryogenic stainless steel, allowing for the safe storage of cryogenic fuels such as liquid oxygen and liquid hydrogen, preventing accidents caused by material embrittlement. The landing leg cushioning structures of my country's Chang'e series of probes are also constructed from stainless steel alloys, whose superior toughness and strength ensure a smooth landing on the lunar surface.

As aerospace technology advances toward higher precision and greater distances, the innovation and upgrading of stainless steel continues unabated. The development of new precipitation-hardened stainless steels achieves a balance between high strength and lightweight, helping reduce the weight and increase the efficiency of spacecraft. Breakthroughs in radiation-resistant stainless steels provide more reliable material support for deep space exploration missions. From the skies to outer space, stainless steel, with its unwavering strength, continues to propel humanity's dreams of exploration forward.