How Long Is the Service Life of Hot-dip Galvanized Steel Pipe?

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.


Galvanized steel pipe has essentially played the role of rust prevention, and there is no need to do other rust prevention treatment. To further improve the antirust effect, you can use a physical method----to brush or spray the surface with a layer of antirust paint.


The application of galvanized pipe is very wide. In addition to water, gas, oil and other general low pressure fluid line pipe, it also can be used in oil industry, especially the ocean oil well pipe, oil pipe, oil heater, the condensing cooler of chemical coking equipment, and the supporting frame tubes of trestle pile, mining tunnel, etc.


The anti-corrosion age of galvanized is long, but the anti-corrosion age is not the same in different environments: 13 years in heavy industrial areas, 50 years in the ocean, 104 years in the suburbs, and 30 years in the city. 


The service life of cold galvanized steel pipe is relatively lower than that of hot galvanized steel pipe. In the process of purchasing galvanized steel pipe, we must know whether we need hot galvanized steel pipe or cold galvanized steel pipe.


评论

发表评论

此博客中的热门博文

The Method of Extending the Service Life of Seamless Pipe

图片
Seamless steel pipes   have hollow sections and are widely used as pipes for conveying fluids, such as pipes for conveying oil, natural gas, gas, water and certain solid materials. The seamless pipe has a certain corrosion resistance, but in order to prolong the service life of the seamless pipe in some extreme environments, it is necessary to remove the oxide layer on the surface of the product. The main cleaning method is pickling. After cleaning, electrolytic cleaning is required again. 1. The seamless steel pipe must wear labor protection supplies before pickling. The on-site working environment should also be checked in detail, mainly to check whether the hoisting of the steel pipe is intact, and work can only be carried out after confirming that it is intact. 2. When pickling seamless steel pipes, the pickling method is mainly hydrochloric acid pickling. Usually, the content of hydrochloric acid is preferably 18% to 20%. 3. The staff also need to know the concentration and temper
阅读全文

Methods of Connecting Spiral Pipes

图片
The most commonly used method of connecting   large-diameter spiral steel pipes   is welding. However, manufacturers also use threaded connections, flange connections, socket connections, and groove connections in projects. In the post,   Xiangjiasteel   would like to introduce you some details about three main connections. 1. Welding and Flange Connection Welding and flange connections are traditional methods of connecting spiral pipes. These methods do not fully meet market demands in terms of safety, sealing performance, cost efficiency, and repair efficiency. They are mainly used for water transmission pipelines, oil and gas pipelines, chemical pipelines, and power pipelines. 2. Clamp Fitting Connection Clamp fitting connections are an advanced method of pipe connections. They can be used for both exposed and buried installations, accommodating both rigid and flexible joints.  3. Groove Fitting Connection Groove fitting connections, also known as clamp connections, have become the
阅读全文

Exploring the Importance of Drill Pipe

图片
Oil Country Tubular Goods   (OCTG) are vital components in oil and gas drilling activities. The term OCTG refers to a range of piping products specifically designed for use in the production of oil and gas. These products include drill pipes, casing pipes, tubing pipes, couplings, connections, and accessories. In this article, we will focus on the significance of drill pipes, one of the three main types of OCTG pipes. A drill pipe is a robust, seamless tube that serves a crucial role in drilling operations. It facilitates the rotation of the drill bit and allows the circulation of drilling fluid. This fluid helps in pumping through the drill bit and flowing back up the annulus, the space between the casing and the piping. The Importance of Drill Pipe in OCTG Endeavors: Drill pipes are designed to withstand axial tension, high torque, and internal pressure. Their strength and durability make them indispensable in the oil and gas industry. Here are some key reasons why drill pipes are cr
阅读全文