1. Titanium: The plate fin tube uses non-alloyed titanium, which can naturally generate a passivation protective film, and if it is damaged, it has "self-healing", so the corrosion resistance is better than stainless steel, and it is suitable for chlorine-containing media The typical material. 2. Titanium-palladium alloy: The plate-finned tube uses unalloyed titanium added with palladium (0.12%~0.25%), which significantly improves the corrosion resistance of titanium in acid media. 3. High-grade stainless steel: It has excellent resistance to chloride pitting and crevice corrosion, making the plate fin tube suitable for media containing salt water, inorganic acid, etc. that cannot be used with type 316.
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