According to the China Aluminum Industry Network, there are approximately 40,000 different types of fasteners available in and out of China, each with various specifications and applications. These fasteners are used in a wide range of environments and conditions, such as industrial profile fittings or connector parts that work in conjunction with the main components of machinery. These parts must meet diverse performance requirements, including resistance to high temperatures, high pressure, low temperatures, shocks, corrosion, heavy loads, alternating stress, shear forces, and anti-torsion. Given these demanding conditions, the failure of a single fastener can lead to serious accidents, making it crucial to carefully select the materials used in their production.
Many domestic fastener manufacturers have faced significant customer complaints due to quality issues. A large number of these problems stem from substandard materials. As a result, the correct selection of fastener materials has become a growing concern for companies in the industry. Choosing the right material not only ensures product reliability but also helps reduce costs associated with recalls and warranty claims.
Regarding the current state and challenges of fastener steel in China, Shen Gong, a materials consultant with the Fastener Professional Association under the China Machinery General Components Industry Association, pointed out: "While China is a major fastener producer and one of the world's leading steel producers, the development and production of fastener-grade steel started relatively late. The variety and specifications of cold heading steels are limited, which makes it difficult to meet the growing demand for both domestic production and exports. Many steel grades currently used in the market are based on Japanese JIS standards like G3506, G3507, and G4105, as well as ASTM standards, indicating a reliance on foreign specifications rather than developing indigenous solutions."
This situation highlights the need for greater investment in research and development to improve the quality and diversity of fastener materials. By focusing on material innovation and standardization, Chinese manufacturers can enhance their competitiveness in both domestic and international markets while ensuring safer and more reliable fastener performance.
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