Round steel refers to the solid long strip of steel with a circular section. Round steel is the language of steel structure, the requirements of material and the reinforcement of concrete structure is different. Round steel is divided into hot rolling, forging and cold pull three kinds. The size of the hot-rolled round steel is 5.5-250 mm. Among them, 5.5-25 mm small round steel is mostly supplied in straight strips, often used as reinforcement, bolts and various mechanical parts; round steel greater than 25 mm, mainly used for manufacturing mechanical parts or seamless steel pipe ring.
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