This article provides a detailed overview of Chinese national standards (GB standards) for various metal materials used in engineering and construction. The GB designation system represents "Guojia Biaozhun" (national standard) specifications issued by the Standardization Administration of China (SAC). The article comprehensively catalogs standards for irons, structural and constructional steels, stainless steels, castings, and welding materials, presenting their standard numbers, latest versions, descriptions, and status. This resource serves as a valuable reference for engineers, manufacturers, and researchers working with Chinese metal standards across multiple industrial applications, including pressure vessels, surgical implants, and specialized welding processes.
The group of Chinese (GB) standard specifications covers iron, carbon steel, and alloy steel within different delivery conditions such as plates, strips, sheets, bars, wires, castings, forgings, and more. All standards that originate in the People's Republic of China have designations that begin with "GB," an abbreviation of "Guojia Biaozhun," which means "national standard."GB standards are the Chinese national standards issued by the Standardization Administration of China (SAC), which also serves as the Chinese National Committee of the ISO and the IEC. This article provides comprehensive information on the following material categories:
For more information on the GB designation system see Introduction to the GB Standard Designation System.
The standards listed in this article cover a wide range of materials and applications, including:
The following table presents the GB standards related to iron materials.
Table 1. Iron Standards
The structural and constructional steel standards below cover materials used in building, infrastructure, and mechanical applications.
Table 2. Structural and Constructional Steel Standards
Stainless steel standards in the table below encompass materials known for their corrosion resistance and specialized applications.
Table 3. Stainless Steel Standards
The standards in the table below relate to cast metal products for various applications.
Table 4. Casting Standards
The welding and filler material standards below focus on consumables used in various welding processes.
Table 5. Welding and Filler Material Standards
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