Seawater Desalination Evaporator

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High-pressure duplex stainless steel evaporator providing superior corrosion resistance in high-chloride seawater applications.

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Duplex Stainless Steel Fitting

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Perfect Welding Technology. Co., Ltd. stocks complete size of varies kind of special metal including plate, seamless tube, welded tube, bar, welding rod and fitting.

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Duplex Stainless Steel Heat Exchanger

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Highly durable heat exchanger engineered for high pressure resistance and superior heat transfer efficiency in harsh chemical processes.

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Duplex Stainless Steel Piping for Desalination Plant

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Robust duplex piping system engineered for high-pressure fluid transport and long-term durability in marine and desalination environments.

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Duplex Stainless Steel Filter for Unclear Plant

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Super duplex filter delivering maximum strength and exceptional pitting resistance for continuous filtration in severe corrosive environments.

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Duplex Stainless Steel Product for Desalination

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Perfect Welding Technology. Co., Ltd. has experiences of Duplex Sustainless Steel. Duplex Sustainless Steel is famous for its excellent sea water resistant ability because it has a mixed microstructure of austenite and ferrite. Duplex stainless steels have roughly twice the strength compared to austenitic stainless steels and also improved resistance to localized corrosion, particularly pitting, crevice corrosion and stress corrosion cracking. They are characterized by high chromium (19–32%) and molybdenum (up to 5%) and lower nickel contents than austenitic stainless steels. However, there are several requirement on heat treatment, welding technology, and machining.

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