What is the difference between stainless steel 2507 and 2205?
2205 duplex steel, duplex stainless steel 2205 alloy is a composite stainless steel composed of 21% chromium, 2.5% molybdenum and 4.5% nickel nitrogen alloy. It has high strength, good impact toughness and good overall and local resistance to stress corrosion.
Chemical composition: C≤0.030 Mn≤2.00 Si≤1.00 p≤0.030 S≤0.020 Cr 22.0～23.0 Ni 4.5～6.5 Mo3.0～3.5 N0.14～0.20 (austenite-ferrite type)\x0d \x0a2;
2507 is a ferritic-austenitic (duplex) stainless steel.2507 duplex stainless combines the most beneficial properties of many ferritic steels and austenitic steels. Due to the high content of chromium and molybdenum in this steel, Therefore, it has excellent resistance to pitting corrosion, crevice corrosion and uniform corrosion.
The two-way microstructure ensures that the steel has high corrosion resistance and stress corrosion cracking resistance, and the mechanical strength is also very high. 2507 stainless steel is used in petroleum and natural gas industry; offshore Shipotian oil platform (heat exchanger tubes, water treatment and water supply systems, fire protection systems, sprinkler systems, water stabilization systems; petrochemical equipment; desalination (desalination) equipment (and high-pressure pipes in equipment, offshore Water pipes); Mechanical and structurally sensitive components that require both high strength and high corrosion resistance; combustion (waste) gas purification equipment. Main components: 25Cr-7Ni-4Mo-0.27N\x0d\x0a2507 chemical composition of stainless steel ：\x0d\x0aC≤0.03, Si≤0.80, Mn≤1.2, Cr:24-26, Ni:6-8, S≤0.02, P≤0.035, Mo:3-5, N:0.24-0.32
