Galvanized steel pipe is a kind of pipe that we often come into contact with in our daily life. It is widely used in the transportation systems of gas, heating and water. In order to improve the corrosion resistance of these steel pipes, galvanizing is usually used. Galvanized steel pipes are mainly divided into two types: hot-dip galvanizing and electro-galvanizing. The hot-dip galvanizing process makes the coating on the surface of the steel pipe thicker, so it has better corrosion resistance and better quality; while the cost of electro-galvanizing is lower, but due to the thin coating, the surface smoothness is not as good as hot-dip galvanizing, and the durability is relatively poor.Seamless steel pipes, SSAW steel pipes and LSAW steel pipes are usually galvanized when used in places with high corrosion protection requirements (such as water supply, gas supply pipelines, fire protection systems).
How to identify inferior galvanized pipes
Nowadays, galvanized steel pipes have become one of the main materials for daily transportation of gas, heating and water due to their good corrosion resistance and long service life. However, with the increase in market demand, some unscrupulous merchants produce inferior galvanized steel pipes in order to pursue profits. These inferior pipes are not only of poor quality, but also have great hidden dangers in actual use, which brings many inconveniences to users. Therefore, it is particularly important to learn how to identify inferior galvanized pipes. Next, let's take a look at how to identify inferior galvanized pipes from several aspects to help everyone avoid these problematic pipes when purchasing.
First, inferior galvanized steel pipes are prone to scratches. This type of steel pipe is usually produced with simple equipment and rough workmanship, which leads to burrs or irregular scratches on the surface of the pipe. If the scratches are deep, the strength of the galvanized pipe will be greatly reduced, making it easy to crack or break in subsequent use. In contrast, the surface of a good quality galvanized pipe is flat and smooth, and after strict quality inspection, this problem will not easily occur.
Secondly, we can also judge the quality of the galvanized pipe by observing its appearance. Inferior galvanized pipes usually lack the luster of metal, and the surface is light red or close to the color of pig iron, which appears dull. The surface of high-quality galvanized pipes should have a uniform metallic luster. In addition, the transverse ribs of inferior galvanized pipes are often thinner and lower, and they are prone to incomplete filling. The reason is that in order to reduce costs, manufacturers will use a larger negative tolerance, which makes the pressure reduction of the finished product larger, resulting in a smaller iron type, and the final hole type cannot be fully filled. This not only affects the appearance of the steel pipe, but also directly affects the strength and service life of the steel pipe.
Main application areas of galvanized pipes
Fire engineering: In the fire water supply system, galvanized steel pipes have become the mainstream choice. Generally speaking, the outer layer of the fire pipe is painted with a layer of red fire retardant paint to make it have a warning effect, but in fact most of these pipes are made of galvanized pipes. Due to its excellent corrosion resistance, galvanized pipes can maintain good fire protection and water supply functions in long-term use and reduce the frequency of later maintenance.
Steel structure and welding engineering: In many industrial plants, workshops and shed buildings, galvanized steel pipes are often used as supporting structures. In the past, most buildings used ordinary welded steel pipes, but welded steel pipes are prone to rust and must be painted regularly for protection. Galvanized steel pipes solve this problem because they have strong anti-corrosion properties and can remain stable for a long time without additional coating, saving a lot of construction and maintenance time.
Agricultural field: In agriculture, galvanized pipes are also widely used, especially in the construction of greenhouses for flowers and fruits and vegetables. Due to its corrosion resistance, durability and durability, galvanized pipes are often used as the main material for greenhouse supports, flower sheds, pillars and other facilities. Galvanized steel pipes can not only extend the service life of the greenhouse, but also effectively resist outdoor conditions with high humidity and complex environment.
Storage and maintenance methods of galvanized pipes
In order to maintain the performance and service life of galvanized steel pipes, reasonable storage methods are essential. The site or warehouse where the galvanized steel pipes are placed should be selected in a clean, ventilated and well-drained place, and away from factories or mining areas that may produce harmful gases or dust. Weeds and all debris should be removed from the ground to prevent corrosive substances from contacting the steel pipes. In addition, galvanized steel pipes should not be stacked together with corrosive materials such as acids, alkalis, salts, cement, etc., so as not to accelerate their rust and aging.
During storage, steel pipes of different specifications and models should be placed separately as much as possible to avoid misuse or contact corrosion caused by confusion. For large steel materials, such as steel sections, rails, steel plates and large-diameter steel pipes, open-air stacking can be used, but the surrounding environment must be kept dry. Some small galvanized pipes, thin steel plates, steel strips or expensive and easily corroded metal products should be stored in warehouses. Warehouses should generally be closed, with roofs and tight doors and windows to prevent rain or moisture from entering, and good ventilation should also be ensured to prevent moisture accumulation.
In general,
galvanized steel pipes have become an indispensable material in modern life and industrial production due to their superior anti-corrosion properties and wide range of applications. When purchasing and using galvanized pipes, pay attention to identifying product quality and choose regular manufacturers to ensure product safety and durability, so as to better serve our daily lives.
English
Español
بالعربية
Phone : 
Whatsapp : 
Email : 
