Changsha Xiangjia Metal Materical Co., Ltd.

Steel pipe  are used for fluid and gas transportation. Pipelines are often buried in the ground or underwater or overhead. Therefore, corrosion resistance of steel pipes is very important. Following, let's take a look at the anti-corrosion process of spiral pipe. According to the application and anti-corrosion process, the pipeline anti-corrosion method divided into 3 types: IPN8710 anti-corrosion and epoxy coal tar pitch anti-corrosion steel pipes are used in tap water supply and water pipelines, most of them are adopt outer epoxy coal tar anti-corrosion and inner IPN8710 anti-corrosion technology. 3PE anti-corrosion steel pipes and TPEP anti-corrosion steel pipes are generally used for gas transmission and tap water transmission. These two anti-corrosion methods have the best performance, but the cost is high. Plastic-coated steel pipe is the most widely used anti-corrosion process at present. The application fields include water supply and drainage, fire sprinkler and mining, wi

There are types of corrosive media in the anti-corrosion   spiral steel pipe , such as acid, alkali, salt, oxidant and water vapor. The coating must be chemically inert and resistant to acid, alkali and salt corrosion. Primer of anti-corrosion spiral steel pipe: It is composed of polyurethane polyethylene, modified epoxy resin, non-toxic anti-rust pigments and fillers, additives, etc. It is cured at room temperature to form an interpenetrating network, the coating film structure is dense, also they are anti-acid, alkali, salt, and anti-rust. Topcoat of anti-corrosion spiral steel pipe: It is composed of epoxy, rubber resin modification, non-toxic anti-rust pigments and fillers, and additives. They has excellent chemical resistance, non-toxic, anti-microbial erosion.

In this article, we are going to talk about the difference between galvanized steel pipe and  seamless steel pipe , or we say galvanized seamless steel pipe and seamless steel pipe. Galvanized refers to the surface treatment technology of plating a layer of zinc on the surface of metal, alloy, or other materials to play the role of aesthetics and rust prevention. Seamless steel pipe is made of a whole piece of metal, and there is no seam on the surface of the steel pipe. There are two kinds of steel pipes: seamless steel pipe and welded steel pipe. Galvanized steel pipe can be seamless steel pipe or welded steel pipe. Seamless steel pipe can be processed into the galvanized seamless steel pipe. Galvanized steel pipe may be seamless steel pipe, and may also be welded steel pipe. Galvanized pipe has higher corrosion resistance, and seamless steel pipe can withstand higher pressure. Galvanized steel pipe is less prone to rust due to the protection of zinc, and is lighter than seamless ste

Square Steel Pipe is usually used in steel structures, structural curtain walls, machinery manufacturing, building materials, shipbuilding, airport, liquid transportation and other fields. Seamless Square Tube is a round tube without joint extrusion, that can be used for liquid delivery. Slotted square pipes can be welded with steel plates and are commonly used in steel structures. Plasticity refers to the ability of a metal material to slow down the plastic deformation (permanent deformation) of a metal shape under loading without damage. Hardness is the ability of a metal material to combine hard and soft. Over-steel is easy to embrittlement, and too soft is non-plastic. Now in  square steel pipe  detection, the commonly used method is the indentation hardness detection method. Measure the degree of indentation by squeezing the square tube against the rectangular tube. At present, the angle size, corner angle, and straightness of cold rolled square pipe used in steel structure engin

Hot dip galvanized steel pipe is also known as galvanized steel pipe. The name implies that it should be gone through special treatment, such as galvanized process. The meaning of galvanizing is to galvanize the outer surface or inner wall of the steel pipe in order to achieve the anti-corruption effect and improve its service life.  At present, most of the cold galvanized steel pipes are used in industry, and only the  hot dip galvanized steel pipes  are still used in cities. So the service life of galvanized steel pipe is what we are most concerned about. The following is to introduce how long the steel pipe can be used after the galvanized process. Galvanized process can increase the corrosion resistance and prolong the service life of the steel pipe. In urban areas, the service life of galvanized steel pipes can reach 30 years, and in other corrosion-prone areas,  the life is even longer. How long they can be used mainly depends on the  thickness of galvanized steel pipe layer. Gal