Hastelloy Flanges offered by us, are generally used to stop one end of the flanged pipe, the opening of a pressure valve or an orifice valve. These flanges are used in flue gas desulfurization systems, since the alloy demonstrates excellent resistance to pitting and stress related corrosion cracking. Our Hastelloy Flanges also provide easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. These flanges have excellent corrosion resistance in a wide range of severe environments.