Cast iron drains are made of grey cast iron and are made from pig iron and scrap steel. Pig iron and scrap are mixed in a certain proportion and then smelted, and corresponding alloying elements such as silicon, manganese, phosphorus, etc. are added to improve the properties of cast iron. During the smelting process, the carbon in cast iron is mainly in the form of graphite, while iron is in the form of a solid solution. The overall size of the cast iron drain pipe is generally small, usually between DN50 and DN200, which has the advantages of simple structure, easy processing and low price. In addition, the cast iron drain pipe also has good corrosion resistance and high compressive strength, which can adapt to the drainage needs of various environments.
Round drains and rectangular drains are two other common types of drains. The shape of the round drain pipe is round, which has good aesthetics and high drainage efficiency. Rectangular drains have a larger drainage area and are suitable for applications where rapid drainage is required. Both types of drain pipes are made of high-strength materials, which have high pressure resistance and corrosion resistance, which can ensure their long-term use effect.
Cast iron drain pipes have a wide range of applications in various fields, such as building drainage, municipal drainage, water conservancy engineering, etc. Especially in some occasions that require high corrosion resistance, such as chemical, pharmaceutical and other industries, cast iron drainage pipes have become one of the preferred drainage materials. In addition, because the cast iron drain pipe has the advantages of simple structure and easy processing, it can also be customized according to the needs of users in some occasions that require customized products.
In a word, as a common drainage material, cast iron drain pipe has a wide range of application prospects and market prospects. With the continuous progress of technology and the continuous improvement of people's product quality requirements, the cast iron drain pipe industry will also usher in a broader space for development.