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Selection and Application of Structural Steel Materials for Aircraft Maintenance Hangars​

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 Aircraft maintenance hangars , as the core facilities for aircraft inspection and repair operations, must endure long-term exposure to large-span loads, extreme weather conditions, and complex operational environments. Consequently, stringent requirements are imposed on the strength, weather resistance, and stability of the structural steel materials employed. The judicious selection of suitable steel structural materials not only ensures the hangar's safe operation but also reduces construction and maintenance costs. Based on the functional requirements of different structural components within the hangar, commonly used steel structural materials can be categorised into three main types, each playing a critical role in hangar construction. I. Primary Load-Bearing Structure: The Core Material Supporting the Hangar's ‘Skeleton’ The primary load-bearing structure forms the hangar's ‘skeleton’, bearing the hangar's own weight, aircraft parking loads, and external forces s...
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What are the national standards for steel materials?

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There are different national standards for steel materials around the world, and the specific standards depend on the country and the intended use of the steel. Some examples of national standards for steel materials are:

  • ASTM (American Society for Testing and Materials) standards: These are widely used in the United States and cover a wide range of steel products, including structural steel, carbon steel, alloy steel, stainless steel, and tool steel.
  • EN (European Norm) standards: These are developed by the European Committee for Standardization (CEN) and cover various types of steel products, including structural steel, stainless steel, and high-strength steel.
  • JIS (Japanese Industrial Standards) standards: These are developed by the Japanese Industrial Standards Committee and cover various types of steel products, including carbon steel, alloy steel, stainless steel, and tool steel.
  • GB (Chinese National Standards) standards: These are developed by the Standardization Administration of China (SAC) and cover various types of steel products, including carbon steel, alloy steel, and stainless steel.
  • ISO (International Organization for Standardization) standards: These are developed by the ISO and cover various types of steel products, including structural steel, stainless steel, and high-strength steel.

These national standards specify the requirements for the chemical composition, mechanical properties, manufacturing methods, and testing procedures of the steel materials. The standards ensure that the steel materials meet certain quality and safety requirements and facilitate international trade by providing a common language for steel products.

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