Advantages and disadvantages of ductile iron pipes lined with cement compared to other pipes! The main components of ductile iron pipes include carbon, silicon, manganese, sulfur, phosphorus, and magnesium. They comply with the standards GB/T13295-2003 and ISO2531/2003, and feature excellent corrosion resistance, good ductility, and superior sealing. They are easy to install and are mainly used for water supply, gas transmission, and oil transportation in municipal, industrial, and mining enterprises.
Performance comparison between ductile iron pipes and conventional cast iron pipes: The production process of K9 ductile iron pipes involves the addition of alkaline earth metals or rare metals such as magnesium and calcium to the raw materials of conventional cast iron pipes. The casting processes for ductile iron pipes include continuous casting, hot mold casting, and water-cooled centrifugal casting, among which the water-cooled method is currently the most advanced technology. Compared with conventional cast iron pipes, ductile iron pipes not only maintain the corrosion resistance of conventional cast iron pipes but also have advantages such as high strength, good toughness, thin walls, light weight, impact resistance, high bending performance, and convenient installation. Therefore, ductile iron pipes are not only widely used abroad but also well promoted and used domestically. In many regions of China, ductile iron pipes have been widely adopted in medium and high-pressure water supply pipes;
Performance comparison between ductile iron pipes and steel pipes: Steel pipes can be divided into welded steel pipes and seamless steel pipes, with welded pipes generally used in water supply pipelines. Compared to ductile iron pipes, steel pipes have advantages such as good toughness, high tensile strength, thin wall, high pressure resistance, long pipe length, and fewer joints. The biggest disadvantages are poor corrosion resistance and high price. Therefore, in general, except for critical pipelines and special projects such as pipe jacking projects;
Performance comparison between ductile iron pipes and prestressed reinforced concrete pipes: ductile iron pipes and prestressed reinforced concrete pipes (applicable to large-diameter pipelines, with the largest diameter exceeding 2000),
It possesses the following characteristics: ① It conserves energy, primarily utilizing sand and stone as materials, which can be sourced locally. ② Due to its large weight and brittle texture, it is difficult to cut and shape, making construction relatively challenging.