1400mm Carbon Steel Welded Pipe GB3087 Grade 1/2"-24" Outer Diamater

2 3 20 24 28 16 Inch 1400mm Welded Pre Galvanized Gb3087 Grade 20 1.0308 Carbon Steel Pipe

Galvanized steel tube is divided into cold plating tube, hot plating tube, the former has been banned, the latter is temporarily advocated by the state.

Hot dip galvanized pipe

Hot dip galvanized tube is to make molten metal and iron matrix reaction and produce alloy layer, so that the matrix and coating of the combination of the two. Hot dip galvanizing is the first steel pipe pickling, in order to remove iron oxide on the surface of the steel pipe, pickling, through ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank for cleaning, and then into the hot dip plating tank. Hot dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.

Cold galvanized pipe

Cold galvanized is electric galvanized, galvanized amount is very small, only 10-50g/m2, its own corrosion resistance is much different than hot galvanized pipe. Regular galvanized pipe manufacturers, in order to ensure quality, most do not use electric galvanized (cold plating). Only those small, outmoded small businesses use galvanizing, and of course their prices are relatively cheap. The Ministry of Construction has officially below, the elimination of backward technology of cold galvanized pipe, the future is not allowed to use cold galvanized pipe for water, gas pipe.

Hot dip galvanized steel tube: complex physical and chemical reactions occur between the steel tube matrix and the molten plating solution to form a tightly structured zinc-iron alloy layer with corrosion resistance. Alloy layer is integrated with pure zinc layer and steel tube matrix. So its corrosion resistance is strong.

Cold galvanized steel tube: the zinc layer is electric coating, zinc layer and steel tube substrate independent layer. Zinc layer is thin, zinc layer simply attached to the steel tube substrate, easy to fall off. So its corrosion resistance is poor. It is forbidden to use cold galvanized steel pipes as water supply pipes in new residential buildings.

Jiangsu Irunt Steel Group Co., Ltd. is located in Wuxi City , Jiangsu Province, China, which is the largest steel production base. After 30 years of efforts, it has grown from a family factory to a group company.

The group company mainly produces and sells a series of steel products such as steel pipe, steel coil, steel plate, copper pipe, copper plate, copper strip, aluminum pipe, aluminum plate, galvanized steel pipe, galvanized coil, galvanized plate and so on.The group company has established five platforms, including three production plants and two processing plants. At present, it is still expanding its production line, basically forming a development model of integration of production, processing and sales.

Our annual production capacity of various specifications is about 1 million metric tons. In addition to being a supplier of our series of products, the group company is also committed to expanding its commitment to customers by strengthening services and adding new facilities. A dedicated team is responsible for providing technical support, recommending the correct use of steel, and assisting customers to give full play to their products.

Over the years, we have opened up new markets in Africa, Southeast Asia, the Middle East and America. Our best service and excellent quality have led long-term partners in many countries and established continuous business relations with all customers. Our principle is "service first, sales second". Most of the time, we have comprehensive inspection and procurement to control the quality of finished products. We will have a professional inspection team to test each delivery of products.

Since its establishment, in line with the mission of "contributing high-quality products and services to the world" and the core values of "customer first, excellence, coexistence and win-win", we ensure that we can deeply cooperate with all our friends in the field of iron and steel, and win more affirmation and praise from the market and customers with its high-quality products, perfect product team and thoughtful service, I believe tomorrow will be better!