2507 (UNS S32750) Duplex Stainless Steel

2507 (UNS S32750) duplex stainless steel

2507 (UNS S32750) duplex stainless steel

2507 (UNS S32750) is a ferritic-austenitic (duplex) stainless steel, which combines the most beneficial properties of many ferritic steels and austenitic steels, due to the high chromium and molybdenum content of the steel. , so it has excellent resistance to pitting corrosion, crevice corrosion and uniform corrosion. The two-way microstructure ensures that the steel has high resistance to stress corrosion cracking and has 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, sprinkler 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 ingredients: 25Cr-7Ni-4Mo-0.27N

National standards:

ASTM/ASME:A240-UNS S32750

EURONORM:1.4410 - X2CrNiMoN25-7-4

AFNOR:Z3 CN 25.06 Az

DIN/EN 1.4410, ASME SA-240

chemical composition:

C≤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

Application areas: pulp and paper industry, seawater desalination, flue gas purification, heat exchangers, chemical tanker piping systems, seawater systems, etc.
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