How to achieve internal anti-corrosion protection for seamless steel pipes in seawater
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With seawater as the medium, what type of pipe material should be chosen, or how should internal anti-corrosion measures be implemented?
I forgot where I saw the relevant information; P
It’s 316L, but the price is high; the internal anti-corrosion treatment involves fluorocarbon spraying. It also depends on the diameter of the pipe and its length.
Commonly available ones include those with a steel lining made of PTFE, PO, PP, PE, as well as those coated by spraying or rolling
Pipes are available in sizes ranging from 2 inches to 20 inches. I was told that epoxy resin, 3PE, and powder coating are used; does anyone know if there is a method that is better resistant to seawater corrosion?
QO subsea pipeline pipes from the API 5L series can be considered. Such as X65QO, X80QO, and so on.
Choose composite pipe: 1. Composite pipe heat exchangers can be used in various highly corrosive environments, meeting the requirements of such operating conditions. Moreover, compared with high-grade alloy heat exchangers, it offers similar performance at a lower manufacturing cost ； 2. In applications exposed to corrosive media such as seawater, titanium composite tubes offer significant advantages over carbon steel and stainless steel tube bundles, including a longer service life, reduced risk of tube blockage, and lower costs for corrosion prevention during operation ；
The poster can use the conventional process of carbon steel combined with AkroNylon 11 powder coating. We use Nylon 11 powder from the French company Akro; feel free to contact me if you need it – Wang, 15721105431
Our company solves the problem of high-temperature and strong-acid corrosion resistance for industrial equipment components. Feel free to contact Mr. Ming at 18937420928