It is a ferritic-austenitic (duplex) stainless steel that combines the most beneficial properties of many ferritic and austenitic steels and has excellent properties due to its high chromium and molybdenum content. Excellent resistance to pitting corrosion, crevice corrosion and uniform corrosion. The bidirectional microstructure ensures that the steel has high resistance to stress corrosion cracking and high mechanical strength.
Stainless steel is used in the oil and gas industry; offshore Shipotian oil platforms (heat exchanger tubes, water treatment and water supply systems, fire protection systems, water spray systems, water stabilization systems; petrochemical equipment; desalination (desalination) equipment (and equipment in High-pressure pipes, seawater pipes); mechanical and structural components that require both high strength and high corrosion resistance; combustion (waste) gas purification equipment. Main components: 25Cr-7Ni-4Mo-0.27N
ASTM/ASME: A240 - UNS S32750
EURONORM:1.4410 - X2CrNiMoN25-7-4
AFNOR: Z3 CN 25.06 Az
DIN/EN 1.4410, ASME SA-240
Application areas: pulp and paper industry, seawater desalination, flue gas purification, heat exchangers, chemical tanker piping systems, seawater systems, etc.
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