More than 25 years experience in the design, manufacture, installation, maintenance and repair for corrosion-resistant process equipment.

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  • Duplex Sustainless Steel Fabrication Product
    Duplex Sustainless Steel Fabrication Product

    Perfect Welding has a great deal of experience to fabricate Duplex Sustainless Steel Product. Duplex Sustainless Steel has a mixed microstructure of austenite and ferrite that has made it famous for being sea water resistant. Compared to austenitic stainless steels, duplex stainless steels have roughly twice the strength as well as improved resistance to localized corrosion. This includes pitting corosion, crevice corrosion and stress corrosion cracking. Duplex Sustainless Steels are characterized by high chromium (19–32%) and molybdenum (up to 5%) and lower nickel contents than austenitic stainless steels. There are however several requirements on heat treatment, welding technology, and machining.


  • Duplex Stainless Steel Product for Desalination
    Duplex Stainless Steel Product for Desalination

    Perfect Welding 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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