In the process flow of square tube steel, welding has always been a challenging step. When welding, in particular, you need to pay attention! Avoid getting wet while welding outside or in the tuyere, as this increases the risk of cracks. When welding high-carbon steel or alloy steel, it is important
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Yield strengthof steelis the yield limit of a metal material when it yields, that is, the stress that resists a small amount of plastic deformation. For metal materials without obvious yield phenomenon, it is stipulated that the stress value that produces 0.2% residual deformation is use
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First, classification of steel tube rectangleSteel tuberectangular is a kind of steel pipe used in the construction field. It is widely used. There are different types according to different application fields. There are many classification methods for steel tuberectangular. The followin
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1. The main production process (main inspection process) of hot-rolled seamless pipe: tube blank preparation and inspection → tube blank heating → perforation → tube rolling → steel tube reheating → diameter (reduction) → heat treatment → finished tube straightening → finishing → Inspection
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