Galvanized square tube square tube products descriptive, cold, heat processing performance and corrosion resistance are good, with good low temperature toughness, galvanized square tube is a tool in hot or cold galvanized steel or galvanized volumes board is blank by cold forming before bending by high frequency welded square sectional shape and size of the hollow square-section steel pipe; or well in advance of the cold-formed hollow-type hot-dip galvanized steel and then the processing of Galvanized square and rectangular tube. Galvanized square tube galvanized square tube: in the use of steel sheet or strip coiled square tube welded after forming and will be the basis of this square tube square tube in the pool after a hot-dip galvanizing A series of chemical reactions party after the formation of the tube. Galvanized square tube production process is relatively simple, and the production efficiency is very high, also many different specifications, equipment and funds needed for this little square tube, galvanized square tube manufacturers for small production. But the strength is the strength of this is far below the seamless steel pipe square tube. Cold galvanized square tube and cold galvanized square tube is on the side of the tube used in principle to the use of cold galvanized square pipes with anti-corrosion properties. And hot-dip galvanizing cold galvanizing paint a different principle primarily through electrochemical corrosion protection, it is necessary to ensure full access to zinc and steel, generating electrode potential difference, so the steel surface treatment is very important. The difference between hot and cold galvanized galvanized square tube with hot galvanized square pipe and galvanized square tube into two categories. Galvanized square tubes have wet, dry, lead and zinc method, redox method. The main difference between the different methods of hot-dip galvanized steel pickling after cleaning, the method used to improve the activation of galvanized pipe surface quality. Production is now mainly dry method and redox method, which features table. Galvanized zinc coating surface is very smooth and dense, uniform organization; has good mechanical properties and corrosion resistance; zinc consumption 60% to 75% lower than the hot-dip galvanizing. Galvanized technically some complexity, but the single-sided coating, different coating thickness of the inner and outer surfaces of the double-sided coating, and thin-walled tube galvanized mused shall use this method. Galvanized pipe is rarely cold galvanizing galvanized, galvanized amount, as long as 10-50g / m2, its own corrosion resistance than galvanized pipe differ a lot. Specification of galvanized pipe manufacturers, in order to ensure the quality, most do not use galvanized (cold plating). As long as those planning a small, outdated equipment and small companies use electro-galvanized, of course, their price is relatively cheap number. Ministry of Construction has formally below current screening technology behind the cold galvanized pipe, the subsequent banning cold galvanized pipe for water, gas pipes. Use short life spans, poor cleaning: It is made of galvanized pipe mishap. Galvanized pipe life span is usually no more than ten years, and certainly in the use of the year, a lot of rust in the pipe attack, not only out of the yellow water pollution ware, heavy metal content of the water is too high and constitute a serious harm to human health. Steel substrate with the molten bath episodes messy physical, chemical reaction to form the layout tight zinc-iron alloy layer corrosion resistance. Alloy layer and the pure zinc layer steel base blend. So the corrosion resistance strong Beijing Weihong Xinglong Steel Co. Our main steel profiles; square tubes, rectangular tube, shaped square and rectangular tube, galvanized pipe, galvanized angle steel, galvanized channel, beam, bar , flat steel, angle, channel, open flat, checkered, plate, manganese plate, H-shaped steel, seamless tube, pipe, galvanized pipe, seamless pipe, thread, wire and various types of elbow, pipe fittings and other quality assurance, reasonable prices. Companies in good faith based, customer first, double surplus cooperation and mutually beneficial business philosophy, emphasis on quality, price and service effective combination, as the basis for the foundation of this company, and your company hopes to bring in a harmonious and pleasant cooperation environment hands, and jointly create a better future!