Which type of steel having high heat transfer coeficient ?

Question

which type of steel use in heat exchanger design?

Answer 1

They are all about the same.

Instead, you should use copper, about 20 times the thermal conductivity of steel.

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Answer 2

While it is true that the conductivity of copper is a lot higher than any type of steel, your question seems to be specifically directed at the differences among types of steel. The conductivity of carbon steel is 51 W/m K at 125C while the conductivity of stainless steel is 17 at the same temperature. You can see that there is a significant difference. However, if the use of stainless permits thinner material to be used, the overall heat transfer coefficient might be higher for stainless than for carbon steel.

For a more precise answer, you need to consider specific alloys and other design details.

Answer 3

The one which is having low melting point metals such as brass,copper, bronze in  it will have high heat transfer coeficent.

Answer 4

The question is specifically about which type of steel for this application.  The answer should be carbon steels. The boiler tubes are made of carbon steel pipes.

The heat transfer coefficient is different from thermal conductivity. Among steels carbon steels have higher thermal conductivity. The heat transfer co efficient will depend on many other properties including surface finish, velocity of the fluid passing over it, etc.

  In a way,  Mr. retired EE  has given a very comprehensive answer.

Answer 5

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