Table Of Content
Duplex 2205/UNS NO31803 Fittings are thus cost-effective and valuable in several applications where the SS300 series cannot prevent chloride stress cracking. Duplex 2205 for both its high strength and outstanding corrosion resistance. It is significant to note that compared to the majority of other austenitic stainless steels, Duplex 2205 has significantly higher levels of corrosion resistance.
Duplex 2205 Fittings are featured as:
These are specifically recommended for corrosive applications in several surroundings. These Fittings are enhanced with the duplex structure’s ferritic and austenitic alloy properties. Thus it offers excellent resistance to stress corrosion cracking. It has exceptional strength, effortless fabrication, and higher corrosion resistance. UNS NO31803 Fittings consist of crosses, tees, Elbow, Eccentric Reducer, Concentric Reducer, Short Stub End, Long Stub End, Cap, and other components. These relevant components are formed with several specifications and standards in various ranges of size, thickness, and bending radius.
Duplex 2205/S31803 Fittings are formed with Duplex 2205 alloy enhanced with Nitrogen. In addition, it gives excellent resistance to saltwater which is helpful in marine environments. It is.
Critical Points of Duplex 2205 grade:
Duplex 2205 qualities are improved by Nitrogen. It is a widely used duplex steel due to its excellent features and mechanical properties. It functions outstandingly in a limited temperature range. Duplex 2205 combines Chromium, Molybdenum, and Nitrogen that, effectively strengthens against chloride pitting and crevice corrosion.
Properties of UNS NO31803 Fittings:
Duplex 2205 Fittings are excellent weldable and recommended for the middle range of temperatures with incredible strength. It offers perfect functioning in corrosive surroundings containing chlorides and other chemicals such as acids, sulfides, and salts
These Fittings are used in Heat exchangers, pharmaceuticals, Seawater, the Oil industry, Dairy and Food, Power plants, Gas, Chemical, and Petrochemicals processing.
|Specifications||ASTM A403 / ASME SA403, ASTM A182 & ASME SA182|
|Forged Fittings Standards||ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799|
|Buttweld Fittings Dimensions||ASME/ANSI B16.9, ASME B16.28, MSS-SP-43|
|Buttweld Fittings Size||1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)|
|Forged Fittings Size||1/8” NB to 4” NB (Socketweld & Screwed-Threaded)|
|Buttweld Fittings Type||Seamless / Welded / Fabricated|
|Forged Fittings Type||Socketweld Fittings, Screwed-Threaded Fittings|
|Forged Fittings Class||2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS|
|Buttweld Fittings Bending Radius||R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom|
|Buttweld Fittings Thickness||Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS|
|2205||1.4462||S31803 / S32205|
|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 %|