Advantages of stainless steel tube as heat exchanger tube

The advantages of heat exchanger tubes of different materials are also different. What are the advantages of stainless steel tubes as heat exchanger tubes compared with copper tubes?

1. The stainless steel hot eunuch generally uses 0.5-0.8mm thin-walled tube which improves the overall heat transfer performance. Under the same heat transfer area the overall heat transfer coefficient is 2-8% higher than that of copper tube

2. The stainless steel heat exchange tube is made of high-quality stainless steel alloy steel with strong hardness which improves the hardness of the stainless steel heat exchange tube and has shock resistance and vibration resistance

3. The inner wall of the stainless steel heat exchange tube is relatively smooth which makes the thickness of the bottom layer of the boundary laminar flow thin and it is not easy to form dirt on the inner wall

4. With the increase of time the oxide layer of copper tube will be thicker and thicker the internal dirt will be more and more the heat transfer effect will be worse and worse while the stainless steel will not be oxidized basically even if the oxidation is slow therefore the heat transfer effect of copper tube is better than that of stainless steel tube from the beginning and the heat transfer effect will be worse and worse as time goes on. The heat transfer effect of copper tube used for a long time is better than that of stainless steel tube At the same time the stainless steel heat exchange tube adopts differential pressure for leakage inspection and there is no pressure drop for 5 minutes.

Summary: in general the heat exchange effect of copper tube is better than that of stainless steel tube but stainless steel can reduce the wall thickness to shorten the gap with copper tube because of its special material and stainless steel tube is not easy to be oxidized will not accumulate dirt inside and is more durable