What is CM and CS pipe?
TPU Case
In the world of construction and engineering, there are various types of pipes used for different purposes. Two common types are CM and CS pipes. CM stands for Cement Mortar, while CS stands for Cast iron. These pipes are widely used in water supply systems, sewage systems, and other applications where the transportation of fluids is required.
CM pipes are made by applying a layer of cement mortar on the inner and outer surfaces of a steel pipe. This layer acts as a protective barrier, preventing corrosion and extending the lifespan of the pipe. The cement mortar is typically a mixture of cement, sand, and water, which is applied using a centrifugal spinning process. This process ensures a uniform and durable coating on the pipe.
On the other hand, CS pipes are made entirely of cast iron. Cast iron is a strong and durable material that has been used for centuries in various applications. CS pipes are known for their high resistance to corrosion and their ability to withstand high pressure. These pipes are manufactured by pouring molten cast iron into molds and allowing it to cool and solidify.
Both CM and CS pipes have their advantages and disadvantages. CM pipes are relatively lightweight and easy to handle, making them suitable for a wide range of applications. They are also resistant to corrosion, which is a significant advantage in environments where the pipe is exposed to moisture or chemicals. However, CM pipes may not be as strong as CS pipes and may require additional support in certain situations.
a Labels are for information and assistance in ordering.
b Nominal linear masses, threaded and coupled (Column 4) are shown for information only.
c The densities of martensitic chromium steels (L80 Types 9Cr and 13Cr) are less than those of carbon steels; The masses shown are therefore not accurate for martensitic chromium steels; A mass correction factor of 0.989 shall be used.
d Mass gain or loss due to end finishing; See 8.5.
e Drift diameter for most common bit size; This drift diameter shall be specified in the purchase agreement and marked on the pipe; See 8.10 for drift requirements.
f Based on 758 mPa minimum yield strength or greater.