What is the Difference Between Ductile Iron Pipe and Machine-Made Cast Iron Pipe?

As a Ductile Iron Pipe Suppliers, share with you.

Ductile Iron Pipe

1. The concept is different. Ductile Iron Pipe refers to the pipe made by the high-speed centrifugal casting of the centrifugal ductile iron machine after the molten iron of No. 18 or above is added with spheroidizing agent. It is referred to as ductile pipe, ductile iron pipe and ductile cast pipe for short. It is mainly used for the transportation of tap water and is an ideal material for tap water pipelines. For drinking water! Machine-made cast iron pipe is a flexible joint drainage cast iron pipe produced by a centrifugal casting process. The joint is generally W-shaped clamp type or A-shaped flange socket type. Commonly used in super high-rise drain pipes and high-rise discharge pipes below 100 meters; used for sewage!

2. Different performance ductile iron pipe is a kind of cast iron, which is an alloy of iron, carbon and silicon. Graphite in ductile cast iron is in the form of spheroids. Generally, the size of graphite is 6-7. The quality of the cast pipe is required to control the spheroidization level of 1-3, so the mechanical properties of the material itself have been better improved. It has the essence of iron and the performance of steel. The annealed ductile iron pipe has a metallographic structure of ferrite plus a small amount of pearlite, which has better mechanical properties. The service life of machine-made cast iron pipe exceeds the expected life of the building. It has excellent seismic performance and can be applied to the seismic fortification of high-rise buildings. It adopts flange gland and rubber ring or lining rubber ring and stainless steel clamp flexible connection, good sealing performance, allow Swing within 15 degrees without leakage. Using metal centrifugal casting, the cast iron pipe has uniform wall thickness, dense structure, smooth surface, no sand holes, slag inclusion and other casting defects. The rubber interface suppresses noise and is the quietest pipe that cannot be replaced, creating the most comfortable living environment.

3. Different uses of ductile iron pipes are mainly called centrifugal ductile iron pipes. It has the essence of iron, the properties of steel, excellent anti-corrosion performance, good ductility, good sealing effect, easy installation, and is mainly used for municipal, industrial and mining enterprise water supply, Gas, oil, etc. It is the first choice for water supply pipes and has a high cost performance. Cast iron pipes are suitable for construction drainage, sewage drainage, civil engineering, road drainage, industrial waste water, agricultural irrigation pipes; cast iron pipes can be suitable for larger pipe axial expansion and contraction displacement and lateral deflection deformation; cast iron pipes are suitable for earthquake intensity below 9 degrees Area used. One sentence summarizes ductile iron pipe: used for drinking water, relatively expensive, the nature of iron, and the performance of steel; machine-made cast iron pipe: used for sewage, relatively cheap, good seismic resistance, the nature of iron, and the performance of iron.