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Cold-formed steel and cold-formed steel equipment

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Cold-formed steel refers to the finished steel made of various sectional shapes of steel plates or strips bent under cold conditions. Cold-formed steel is a kind of lightweight thin-walled steel with economical section, also known as cold-formed steel or cold-formed steel. Cold-formed steel is the main material of light steel structure. It has a variety of ultra-thin, reasonably shaped and complex sections that cannot be produced by hot rolling. Compared with hot-rolled section steel, the radius of gyration and the moment of inertia of section can be increased by 50 ~ 60% and 0.5 ~ 3.0 times respectively under the same section area, so the material strength can be reasonably utilized. Compared with ordinary steel structures (that is, steel structures made of traditional I-beams, channels, angles and steel plates), about 30-50% steel can be saved.
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