Current label: Square tube sales
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The difference between seamless square tube and straight seam square tube: where is the big difference between straight seam square tube and seamless square tube? Analysts believe that the accelerated recovery of economic growth is one of the important factors to promote the square tube plate. Previously, there was a strong short selling mood in the US market, but recently, with the release of better than expected economic data from the US, Europe and China, the market mood has improved. Elimination
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Production and manufacturing of square tubes: many defects of square tubes are formed in the process of piercing, so the piercing process of tube blanks is the key process of consuming square tubes. The main difficulty of high alloy piercing is the low piercing performance. In order to ensure the quality, it is necessary to rationally select the deformation parameters of piercing. A small tightening amount will cause instability in the perforation process, so the critical tightening amount per hour should be the first tightening amount
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Commonly used square tube size: for example, the commonly used square tube size of seamless square tube with an outer diameter of 50mm, ⑴ It is generally calibrated in millimeters (mm) of the outer diameter D, inner diameter and wall thickness S of the square tube. ⑵ Each type of square tube has regular different sizes, with 29 types of 32-195mm outer diameter. Another example is the nominal diameter of welded square pipe 2
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The influence of temperature and time on the performance of square tube: at the same time, the heating temperature and time will also have a great impact on the performance of square tube. During the operation of circular furnace, the technical regulations should be strictly followed. The influence of temperature and time on the performance of square tube should be checked frequently. The billet of square tube will be burned and decarburized, In order to ensure the stability of piercing performance and chemical properties of square tube billets
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Mechanical properties of square tubes 1. Performance index analysis of square tubes - plastic plasticity refers to the ability of metal materials to estimate the specifications and characteristics of efficiency enhancing square tubes under load, and introduce the specifications and characteristics of welded circular tubes and square tubes to produce plastic deformation (permanent deformation) without damage. 2. Performance index analysis of square tube - hardness and hardness are indicators to weigh the hardness and softness of metal materials. at present
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Use of square tubes: square tubes are used in construction, machinery manufacturing, steel building and other projects, shipbuilding, solar power generation support, steel construction engineering, power engineering, power plant, agricultural and chemical machinery, glass curtain wall, automobile chassis, airport, boiler construction, highway railing. There are also buildings, pressure vessels, oil tanks, bridges, power station equipment, lifting and transportation machinery and
