For structure: as pile driving pipe and bridge; pipe for wharf, road and building structure, marine pile driving pipe, etc.Zinc layer thickness: there is a great difference between cold galvanized square pipe and hot galvanized square pipe in galvanizing process; Cold galvanized square pipes are prone to & ldquo; Electric burning & rdquo; The color of this part is gray and the zinc layer is thick. It is easy to form a current dead angle at the corner, resulting in an under current area. The zinc layer at this part is thin, and there is no zinc layer attached to the cold galvanized square pipe. The cold galvanized square pipe has no zinc lump and caking as a whole but the overall zinc layer is thin, and the thickness of the outer wall zinc layer is μ m-μ m. The and outer walls of the hot-dip galvanized square tube are attached with zinc layer, and there will be water marks and a few zinc tumors, but the overall zinc layer is thick, and the thickness of the zinc layer on the inner and outer walls of the square tube is -mu; M above. The nature of QB square tube!Santiago sachatpex,Function index analysis of square tube - strength and plasticity discussed later are machine function indicators of metal under static load. In practice, many mechanical machines are under repeated load employment. In this environment, the whole opportunity is tired.High density may not be obtained by simple pressurization, and insulation shall be carried out at the same time.Ansfelden, the material is too soft to affect the requirements, so as to ensure the quality of parts and avoid wrinkles.Structural stainless steel square pipe (gbt-) is a hot-rolled (extruded, expanded) and cold drawn (rolled) square pipe made of stainless steel for corrosion-resistant pipes, structural parts and parts widely used in chemical, petroleum, light textile, food, machinery and other industries.B. low alloy structural steel C. ordinary structural steel and high-quality steel for specific purposes (including high-quality steel)

For transportation: water supply, drainage, sewage treatment engineering, mud transportation, marine water transportation.Performance index analysis fatigue of square tube the strength, plasticity and hardness discussed above are the indicators of the mechanical properties of metal under static load. In fact, many machine parts work under cyclic load, under which fatigue will occur.After cold drawing and aging treatment, the yield point is improved, the tensile ultimate strength is also increased,Santiago sachatpexGalvanized JDG pipe, and the plasticity continues to decrease. Due to the reduction of internal stress during aging, cold drawing or cold drawing of reinforcement or low carbon steel wire rod is often carried out on site or prefabricated component factory so as to improve yield strength and save steel.market price,Santiago sachatpex1-inch galvanized steel pipe for greenhouse,In this period, the technology of continuous rolling pipe was not mature.Purpose of square tube the purpose of square tube includes construction, machinery, steel construction and other projects, shipbuilding, solar power generation support,Santiago sachatpexHow much is a ton of galvanized steel pipe now, steel structure engineering, electric products ( pieces)It is the process of drawing the die hole of the rolled metal blank (shape, pipe, etc.) into a section to reduce the length and increase. It is mostly used for cold processing.

Generally, chemical and electrolytic methods are usedAnalysis project,The principle is similar to that of the plate rolling machine. The bending machine can determine a circle. Adjust the height to adjust the curvature.Avoid contact with pollutants such as oil and copper when storing square tubes.During the pushing process of spot welding and repair welding elbows, there will be thinning, so manufacturers usually use thick spot pipes. If thin raw materials are used, the products produced must be unqualified. Generally, there are about wires thinned. If the technology is not good or the drawn pipe is used, the thickness is significantly lower than the standard.Santiago sachatpex,The strength plasticity and angle discussed later are the machine function indicators of metal under static load. In practice, many mechanical machines are under repeated load, and the whole opportunity is tired in this environment.After chemical pickling, the square tube can be well protected by electrolysis. These are simple ways to prolong the service life of the square tube, We only need to treat according to these, so that the square tube can bring us great help in the use process. The cold galvanized square tube is the principle of cold galvanizing on the square tube used to make the square tube have corrosion performance. Different from hot-dip galvanizing, cold galvanizing coating is mainly carried out according to the electrochemical principle. Therefore, it is necessary to ensure the sufficient of zinc powder and steel resulting in electrode potential difference, so the steel surface treatment requirements are very high.With the improvement of production quality, their characteristics and uses are different. I will introduce the characteristics and uses of square tubes in detail.