Duplex steel flanges are made from work hardenable alloys that are exceptionally corrosion-resistant. A blend of austenite and ferrite phases makes up their composition. As a result, qualities of both austenitic and ferritic stainless steel can be found in duplex steel flanges. While duplex stainless steel is resistant to stress corrosion cracking, it is not as robust as ferritic stainless steel to this type of assault. The corrosion resistance of the least resistant duplex stainless steel, on the other hand, is higher than that of the most generally used stainless steel grades, 304 and 316. Duplex stainless steel is extremely corrosion resistant. They have high resistance to intergranular corrosion. Even in chloride and sulfide environments, Duplex steel flanges exhibit very high resistance to stress corrosion cracking.
Duplex steel flanges are more resistant to saltwater than grade 316. It's nitrogen-enhanced stainless steel that was created to solve the 300 series stainless steel's corrosion resistance difficulties.
Duplex steel flanges are frequently utilized in a variety of applications, including storage tanks, water heaters, and bridges. They are mostly used in situations when the austenitic grades might fail prematurely. Other applications include chemical processing, transport and storage, Oil and gas exploration and offshore rigs, Oil and gas refining, Pollution control equipment, Pulp & paper manufacturing, and Chemical process plant
* We are a most trusted name in between the topmost companies in this business, instrumental in offering high quality array of Duplex Steel Flange. * We provide different types of sites to our customers such as screwed flanges, socket weld flanges, blind flanges, reducing flanges, plate flanges, stainless steel flanges, lap joint flanges and slip on flanges. Standards : ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP, NACE A240, A276, A479, A789, A790, A182 (Grade F51), A923 DIN Standard : ND-6,10, 16, 25, 40 Etc. Materials : ASTM A182, F 51 UNS S31803 Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS From : Slip on Flanges, SORF, Weld neck Flanges â?? WNRF, Socket weld Flanges : SWRF, Blind Flanges. BLRFLapped joint Flanges, Screwed Flanges, Long weld neck Flanges, Reducing Flanges, Spectacle Flanges, Ring joint Flanges Size 1/2 NB TO 24 NB IN Usage : Water System, Electric Power, Oil Field, Pipe Projects, Natural Gas, Offshore, Shipbuilding etc.
Duplex and super duplex steel flanges are a type of stainless steel flange that has a two-phase microstructure consisting of ferrite and austenite. This gives them a number of advantages over other types of stainless steel flanges, including: Higher strength: Duplex and super duplex steel flanges have a higher yield strength than other types of stainless steel flanges, making them more resistant to deformation and cracking. Better corrosion resistance: Duplex and super duplex steel flanges have better corrosion resistance than other types of stainless steel flanges, making them suitable for use in harsh environments. Lower thermal expansion coefficient: Duplex and super duplex steel flanges have a lower thermal expansion coefficient than other types of stainless steel flanges, making them less susceptible to thermal stresses. â?¢ Duplex & Super Duplex Steel Flange : ASTM A182 / ASME SA182 F44, F 45, F51, F 53, F 55, F 60, F 61 The technical specifications of duplex and super duplex steel flanges vary depending on the grade of steel and the application. However, some common specifications include: Pressure rating: 150# to 2500# Temperature rating: -200�°C to 300�°C Dimensional tolerances: ANSI/ASME B16.5 Finish: Smooth, blasted, or electro polished