The key is to try to eliminate the potential of any galvanic action inside the tubes when plugging. Galvanic corrosion happens when two dissimilar metals come in contact and are also introduced to an electrolyte element (ie., a water/salt solution).
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For this type of corrosion to occur, there needs to be metal to metal contact of dissimilar metals (like brass and stainless for instance) and an electrolyte solution to act as the catalyst. In manufacturing our tube plugs, we have tried to greatly eliminate this possibility by having some key differences over other types of tube plugs.
Step One is matching our nut and bolt material with the most similar tube material: Stainless Steel alloy tubes with Stainless Steel, Copper Nickel tubes with Brass (a similar match on a Galvanic Series of Metal and Alloys Chart &#; see chart below), Titanium tubes with Titanium.
Step Two is our non-water soluble Hytrel washers and collars in place of using metal material that will touch the tube walls. No direct contact decreases or eliminates the incidents of galvanic action.
Step Three The provision of a completely Non Metallic plug for use where cases of corrosion are elevated due to electrolyte solution, etc.
Whenever there is a question of what the most appropriate material plug should be used with your condenser tubes, it is always best to consult us in order to consider all pertinent information and make an informed decision. We are here for you at (781) 749- Monday through Friday 9am-5pm EST and after hours our Call centers can get in touch with us at any time.
Stainless steel and nickel alloy heat exchanger tubes are two common materials used in industry, and they play a vital role in critical equipment such as heat exchangers and condensers. Understanding the difference between them is important in selecting the right material to ensure efficient and stable operation of the equipment.
Definition:
Stainless Steel Heat Exchanger Tubes: These heat exchanger tubes have iron, carbon and at least 10.5% chromium as their main components. The addition of chromium significantly improves the corrosion resistance of stainless steel. The material maintains good physical and chemical stability in many environments.
Nickel alloy heat exchanger tubes: Nickel alloy heat exchanger tubes contain a high percentage of nickel, as well as chromium, molybdenum and other alloying elements added, these elements together give the nickel alloy extraordinary corrosion resistance and high temperature resistance, suitable for more demanding working environment.
The company is the world’s best Nickel Alloy Condenser Tube supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.
Difference:
Corrosion resistance: Although stainless steel has good corrosion resistance, nickel alloys have superior corrosion resistance in extreme environments, especially for seawater, high temperatures and some chemicals.
Temperature resistance: Nickel alloys are also far superior to stainless steel in terms of high temperature resistance, and can work stably for a long time at higher temperatures, while stainless steel's mechanical properties will be reduced at high temperatures.
Cost: Due to the special composition and manufacturing costs of nickel alloys, their price is usually higher than stainless steel, which makes stainless steel more popular in cost-sensitive applications.
Areas of application:
Stainless steel heat exchanger tubes: commonly used in food processing, pharmaceutical, construction, automotive and other industries, where good corrosion resistance and hygiene are usually required, but where working conditions are relatively mild.
Nickel alloy heat exchanger tubes: mainly used in petrochemical, aerospace, marine engineering and other high-end areas, the working environment in these areas is extremely harsh, requiring materials with very high corrosion resistance and high temperature resistance.
The choice of stainless steel or nickel alloy heat exchanger tubes needs to be decided according to the specific application environment and economic budget. Stainless steel tubes offer a cost-effective solution for most standard applications. Nickel alloy heat exchanger tubes, on the other hand, offer a reliable option for systems that need to operate under extreme conditions. Each material has its own unique properties and benefits, and the right choice ensures efficient operation and long-term stability of the heat transfer system.
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