25CR Super 110ksi Duplex Tubing Pup Joint
25CR Super 110ksi is a kind of Ferritic Austenitic (duplex) stainless steel, which combines the most beneficial properties of many Ferritic and austenitic steels. Due to the high content of chromium and molybdenum, the steel has 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 oil and gas industry; Offshore skyshatter oil platform (heat exchanger pipe, water treatment and water supply system, fire protection system, sprinkler system, water stabilization system; petrochemical equipment; desalination (Desalination) equipment (and high-pressure pipe and seawater pipe in the equipment); mechanical and structural components requiring both high strength and high corrosion resistance; fuel (waste) gas purification equipment. Main composition: 25cr-7ni-4mo-0.27n
Super dual phase steel has high strength and excellent corrosion resistance. It is especially used for parts of desalination plant, heat exchanger of seawater cooling plant, drive shaft of export pipe in the sea, container tank and petrochemical transmission pipe in paper mill. It can also be used in exposed external environment (such as bridges, sea immersed buildings, etc.) for a long time. Because dual phase steel has high strength, good plastic toughness and slower ductile brittle transition than carbon steel and ferritic stainless steel, it also has good low temperature (- 40 ℃) toughness.
