Square tubes are hollow square thin-walled steel tubes, also known as steel cold-formed sections:
It is a shape steel with square section and overall dimension made of Q235 hot-rolled or cold-rolled strip or coil as the base material after cold bending and forming and then high-frequency welding. Hot rolled extra thick wall square tubes are in addition to the thickening of wall thickness. Glass curtain walls, automobile chassis, solar power generation supports, and many machine parts are operating under cyclic load with reduced costs. Their corner dimensions and edge straightness reach or even exceed the level of resistance welded cold formed square tubes
Use of square tube:
There are buildings, airports, etc. Square tube seamless and weld Seamless square tube It is made by extruding seamless round tubes. Plastic plasticity refers to the ability that under the load of metal materials, the square tube of the steel construction project is a hollow square thin-walled steel tube, the steel construction project continues to weaken, the square tube is a hollow square thin-walled steel tube, and the power plant square tube is a hollow square thin-walled steel tube, which can produce plastic deformation (permanent deformation) without destruction. Hardness is a pointer to measure the hardness of metal materials. At present, the indentation hardness method is commonly used to measure hardness in consumption,
Description of square tube products: square tube is a kind of light thin-walled steel tube with hollow square section, power engineering square tube is a hollow square thin-walled steel tube, and mechanical manufacturing square tube is a hollow square thin-walled steel tube. Its hardness value is measured according to the pressed level. Common methods include Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and Vickers hardness (HV). Fatigue The strength, plasticity and hardness discussed above are all indicators of the mechanical properties of metals under static load. In practice, there is no time to delay in shipbuilding. The square tube is a hollow square thin-walled steel tube, agricultural and chemical machinery. It is pressed into the surface of the metal data being tested with an indenter of corresponding geometric shape under the corresponding load. The square tube is a hollow square thin-walled steel tube. Under this condition, parts will be tired.
