Normalized: A. pearlite steel; b. Bainitic steel; c. Martensitic steel; d. Austenitic steel.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,ChikimuliaManufacturer of galvanized square pipe, 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.Chikimulia,The surface compressive stress characteristics of the square tube will be obtained after isothermal quenching.Classification of square pipe material square pipe is divided into ordinary carbon steel square pipe and low alloy square pipe according to material. Ordinary carbon steel is divided into Q Q q SS, # steel, # steel etc; Low alloy steels are divided into q Mn, Q, St-, etc.Izola,Square tube is a very good steel in economic construction. There are many kinds and principles of cold drawing. You may still have a lot of insufficient understanding of the cold drawing principle of each other's pipe. Next, and it is the key to the quality of galvanized square pipes. Thorough derusting can improve the adhesion of antirust paint and prolong the service life of galvanized square pipe.

B. low alloy structural steel C. ordinary structural steel and high-quality steel for specific purposes (including high-quality steel)Under our practical investigation, Fangguan hasThe difference between hot-dip galvanized square pipe and cold-dip galvanized square pipe is mainly from the following aspects: the appearance of hot-dip galvanized square pipe is slightly rough compared with cold-dip galvanized square pipe; The appearance of cold galvanized square pipe is smooth and bright.Quality risk,Reinforcing phases such as reinforcing particles, short fibers and whiskers can be added to the solder to form composites.When the vehicle is replaced with seamless square tube blank,Chikimulia2-inch galvanized pipe, the material is too soft to affect the requirements, so as to ensure the quality of parts and avoid wrinkles.Main uses of square tube: square tube is mainly used in tap water engineering petrochemical industry, chemical industry,ChikimuliaWhich manufacturers of galvanized square pipe are good, electric power industry, agricultural irrigation and urban construction. It is one of the key products developed.

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.Welcome calls ,C. electric furnace steel: (a) electric arc furnace steel; (b) Electroslag furnace steel; (c) Induction furnace steel; (d) Vacuum consumable furnace steel; (e) Electron beam furnace steel.Low alloy steel is divided into q Mn, Q, St-, etc.Reinforcing phases such as reinforcing particles, short fibers and whiskers can be added to the solder to form composites.Chikimulia,Impact toughness the load acting on the machine part at a great speed by QB is called impact load, and the ability of metal under impact load is called impact toughness.After spraying (throwing) derusting, it can not only expand the physical adsorption on the pipe surface, but also enhance the mechanical adhesion between the layer and the pipe surface. Therefore, spray (throwing) derusting is an ideal derusting method for pipelines. Generally speaking, shot blasting (sand) is mainly used for the inner surface treatment of the pipe, and shot blasting (sand) is mainly used for the outer surface treatment of the pipe. Several problems should be paid attention to in derusting by spraying (throwing).Main uses of square tube: square tube is mainly used in tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction. It is one of the key products developed.