Table Of Content
In applications that demand strong materials with good corrosion resistance, Duplex 2205 Stainless Steel, both ferritic and austenitic, is commonly utilized. The UNS S32205 grade of stainless steel, approved in 1996, results from several adjustments to the S31803 grade stainless steel. This grade provides superior corrosion resistance. These UNS NO31803 flanges as well are manufactured in compliance with global norms.
What is Duplex 2205?
Duplex 2205 /UNS NO31803 is a composition of 22% chromium, 5 to 6% nickel, nitrogen, 3% molybdenum, and duplex-hardened steel with extended erosion obstruction in atmospheric and stress conditions. It is known for its high strength, toughness, and superb durability.
Features of Duplex 2205:
These flanges sustain the attacks of corrosive media. They can function efficiently to pitting caused by chloride layer accumulation. They can accommodate the flow of any liquid or gas. The reliability of these flanges is enormous when used for various mechanical assemblies. They are incorporated in the uses of different infrastructural parts too. Duplex S31803 Flanges can stand firm against continuous water flow too. They are capable of bearing the related mechanical load. Their tensile capacity is high, making the product stable and long-lasting. Harmful media do not hamper their functionality. They are easy to attach to machines of any grade.
Advantages of Duplex 2205 flanges:
The other types of flanges include ring flanges, slip-on flanges, etc. The rates of such flanges with us are very moderate. They are easy to access and assemble in the system
Applications of Duplex 2205/ UNS NO31803 flanges are as follows:-
These flanges support working areas of high pressures and thermal conditions. Aqueous conditions do not disturb them. These duplex-grade flanges are used for desalination, architecture and construction, chemical tanks, power generation industries, biofuel plants, etc. In addition, they are extensively used in the chemical processing sector. These flanges are produced with accuracy.
Specifications | ASTM A182 / ASME SA182 |
Flange size range | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
Flanges Dimensions | ANSI/ ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
Flanges Standard | ANSI Flanges, AWWA Flanges, ASME Flanges, BS 10 Table D Flanges, Table E Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flanges. |
Pressure Class / Rating | Class 150 LBS, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
Flange Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Large Male-Female (LMF), Flat Face (FF), Small Male-Female (SMF), Lap-Joint Face (LJF), Small Tongue, Large Tongue & Groove |
Specialized manufacturer of | Weld Neck Ring Flanges (WNRF), Slip-On Ring Flanges (SORF), Blind Ring Flanges (BLRF), Socket Weld Ring Flanges (SWRF), Lap Joint Ring Flanges (LJRF), Ring Type Joint Flanges (RTJF), Large Diameter Flanges, Orifice Flanges |
Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
STANDARD | WERKSTOFF NR. | UNS |
2205 | 1.4462 | S31803 / S32205 |
C | N | P | Si | Mn | Mo | Fe | Cr | S | Ni |
1.0 | 0.03 | 0.02 | 2.0 | 3.0 – 3.5 | 22.0 – 23.0 | 0.03 | 4.5 – 6.5 | 0.14 – 0.2 | Bal |
Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
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