2205 duplex stainless steel seamless tube alloy is a compound stainless steel consisting of 21% chromium, 2.5% molybdenum and 4.5% nickel-nitrogen alloy. It has high strength, good impact toughness and good overall and local stress corrosion resistance.
2205 duplex stainless steel seamless tube is a kind of ferritic-austenitic stainless steel. It combines the beneficial properties of ferrite and austenite, has good resistance to chloride ion stress corrosion cracking, better resistance to chloride ion pitting and crevice corrosion than 317L, good resistance to general corrosion, and good resistance to sulfide stress corrosion.
The steel has excellent resistance to pitting and uniform corrosion due to the high content of both chromium and molybdenum. The duplex head microstructure ensures that the steel has a high resistance to stress corrosion rupture, as well as high mechanical strength.
Application areas of duplex stainless steel pipe 2205.
Paper industry equipment, food industry processing equipment, thermal power plant flue gas desulfurization equipment, offshore oil platforms (heat exchanger tubes, water treatment and water supply systems, fire fighting systems, water spray systems, water stabilization systems), desalination (desalination) equipment (high pressure tubes in Ro equipment, seawater tubes) and other special chemical environment equipment, oilfield pipelines and equipment, other chemical equipment. Used in refining, fertilizer, paper, petroleum, chemical and other seawater resistant and high temperature resistant concentrated nitric acid heat exchangers and cold showers and devices.