Hunan Yushen New Energy Technology Co., Ltd.

With the continuous development of aircraft manufacturing and aerospace technology, as well as the rapid improvement of aircraft comprehensive performance, the demand for stainless steel precision pipes will increase significantly. The stainless steel pipes that need to be used generally include precision stainless steel pipes, high-temperature alloy pipes, corrugated metal flexible pipes, etc. Aviation standard tubes are also widely used in carrier rockets, strategic missiles, solid rocket engines, liquid rocket engines, satellite and manned spaceflight manufacturing, spacecraft, various navigation instruments, guidance equipment, inertial systems, aerospace sensors, etc.

 

Because it also requires a significant increase in the strength of structural steel and stainless steel, as well as good plasticity and toughness, small notch sensitivity, high fatigue resistance, high stress corrosion resistance, high hydrogen hysteresis failure resistance, high creep resistance, small anisotropy, and good engineering performance. Improving the purity and uniformity of steel is an important development direction for aviation steel. Improving the purity of steel, controlling the morphology and distribution of non-metallic inclusions, and ensuring that the steel has uniform composition and properties throughout the cross-section are important means to improve the reliability of steel parts and extend their service life. Taking landing gear materials as an example, landing gear materials require high specific strength, as well as high absolute strength and fatigue strength.

 

The American Aerospace High Performance Structural Steel Stainless Steel Standard (AMS) is a standard for each grade and condition, which has strict requirements for mechanical properties, final heat treatment system, microstructure, grain size, non-metallic inclusions, hairline (purity), and ultrasonic testing.

 

 

 

 

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