Seawater Desalination Evaporator

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Duplex Stainless Steel Fitting

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Perfect Welding Tech. 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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Duplex Stainless Steel Piping for Desalination Plant

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Duplex Stainless Steel Filter for Unclear Plant

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Duplex Stainless Steel Product for Desalination

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Perfect Welding Tech. 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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