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Cold-formed steel is a type of finished steel product that is manufactured by bending steel plates or strips at room temperature. This process allows for the creation of various cross-sectional shapes that are not easily achievable through hot rolling. Known as cold-formed profiles or steel-refrigerated curved sections, cold-formed steel is an economical and lightweight material commonly used in structural applications.
One of the key advantages of cold-formed steel is its ability to produce thin-walled, complex sections with high precision. Compared to traditional hot-rolled steel, it offers improved structural efficiency. For example, in the same cross-sectional area, the radius of gyration can increase by 50-60%, and the section's moment of inertia can be up to 3 times greater. This means that the material is used more effectively, leading to better load-bearing performance with less steel.
When compared to conventional steel structures made from I-beams, channel sections, angle iron, or steel plates, cold-formed steel can reduce steel usage by approximately 30% to 50%. This makes it a more sustainable and cost-effective choice for modern construction projects. Its versatility, combined with its strength-to-weight ratio, has made it a popular choice in both residential and commercial building applications.
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