The difference between cast iron pipe and steel pipe

The main differences between cast iron pipes and steel pipes are different uses, characteristics, and classifications.
1. Different uses
Cast iron pipes are suitable for domestic drainage pipes, rainwater pipes, industrial wastewater pipes and raindrop pipes in newly built, expanded and renovated civil and industrial buildings and in clamp-connected interiors.
Steel pipes are used to transport fluids and powdered solids, exchange heat energy, and manufacture mechanical parts and containers. They are a kind of economical steel. Using steel pipes to manufacture the space trusses, columns and mechanical supports of the building structure can reduce weight, save 20-40% of metal, and achieve industrialized mechanized construction.
2. Different characteristics
Cast iron pipes have the advantages of safe and reliable operation, low damage rate, convenient construction and maintenance, and excellent anti-corrosion performance.
Steel pipes have simple production technology, high production efficiency, many varieties and specifications, and low equipment investment. Compared with solid steel such as round steel, seamless steel pipes are an economical steel with the same bending and torsional strength.
3. Different categories
Cast iron pipes can be divided into three categories: straight pipes, fittings and accessories. From the interface form, it can be divided into W-type flexible cast iron drainage pipe, B-type flexible cast iron drainage pipe and A-type flexible cast iron drainage pipe. From the material point of view: ductile iron drainage pipe, gray cast iron drainage pipe.
According to the production method, steel pipes can be divided into seamless steel pipes and seamless steel pipes. Seamless steel pipe is referred to as straight seam steel pipe. According to the pipe material (i.e. steel grade), it can be divided into carbon pipe, alloy pipe, stainless steel pipe, etc. According to the pipe end connection method, it can be divided into light pipe (unthreaded pipe end) and threaded pipe (threaded pipe end).