What is Duplex S31803/2205 Flanges ?

Duplex and super duplex flanges are the most demanded grades in the steel industry today. These Duplex s31803 flanges are made of high alloyed metals and raw material. This grade is enriched with excellent properties and characteristics.

Duplex s31803 flanges are made from an excellent combination of elements. The mixture of these elements includes a high amount of chromium content that increases the durability and strength of the grades. It also includes other elements like molybdenum, nickel, nitrogen, etc.

The combination includes at least 20-28% of chromium content, it also includes nickel up-to 9% and at least 5% of molybdenum content. This combination provides extreme stability and efficiency to this grade.

duplex-and-super-duplex-s31803-flanges

ASTM A182 Threaded Flanges, Duplex Steel 31803 Flanges, Werkstoff No 1.4462 Socket Weld Flanges, ANSI B16.5, ANSI B16.47, B16.48, BS4504, BS 10, EN-1092 Duplex Steel Flanges

Duplex s31803 flanges are made of a mixture of austenitic and ferritic metals. These flanges are commonly used in boilers as they have high melting and boiling points. Duplex s31803 flanges are not recommended for use above 300°C. The grade provides high resistance from oxidation above 50°C. It also protects from corrosion, crevice corrosion and stress cracking. Duplex s31803 flanges also have low carbon content which reduces the chances of carbide precipitation. These flanges are obtainable in various sizes, shapes and thicknesses.

Duplex S31803/S32205 Flanges Specifications

Specifications ASTM A182 / ASME SA182
Standard ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Size Range 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 , as per Customer Requirements
Dimensions ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Surface pickling, annealing, bright, sand blast, hair line
Type Weld Neck Ring Flange (WNRF), Slip-On Ring Flange (SORF), Blind Ring Flange (BLRF), Socket Weld Ring Flange (SWRF), Threaded Ring Flange, Lap Joint Ring Flange (LJRF), Ring Type Joint Flange (RTJF),
Connection type Raised Face, Flat Face, Ring Type Joint, Lap-Joint Face, Large Male-Female, Small Male-Female, Large Tongue, Groove, Small Tongue, Groove.
Test Certificates EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc
STANDARD WERKSTOFF NR. UNS
Duplex 2205 1.4462 S31803
Grade C Mn Si P S Cr Mo Ni N Fe
S31803 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 22.0 – 23.0 3.0 – 3.5 4.50 – 6.50 0.14 – 0.20 63.72 min
Grades Density (g/cm 3) Density (lb/in 3) Melting Point (°C) Melting Point (°F)
S31803 7.805 0.285 1420 – 1465 2588 – 2669
Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS4087 PN14 95 67 4 M12 14
AS 2129 Table C 95 67 4 13 14
Table D 95 67 4 13 14
Table E 95 67 4 13 14
Table F 95 67 4 13 14
Table H 114 83 4 16 17
Table J 114 83 4 16 17
ANSI B16.5 ANSI 150 89 60 4 13 16
ANSI 300 95 67 4 13 16
ANSI 600 95 67 4 13 16
ANSI 900 121 83 4 19 22
ANSI 1500 121 83 4 19 22
ISO 7005 (DIN) PN6 80 55 4 M10 11
PN10 95 65 4 M12 14
PN16 95 65 4 M12 14
PN20 90 60.5 4 M14 16
PN25 95 65 4 M12 14
PN40 95 65 4 M12 14
duplex-2205-flanges

Other Products

Duplex Steel S31803 Reducing Flanges Duplex S32205 Reducing Flanges
S31803 Duplex Steel Reducing Flanges S32205 Duplex Steel Reducing Flange
Duplex UNS S31803 Reducing Flanges Duplex WERKSTOFF NR. 1.4462 Reducing Flange
Duplex Steel S31803 Forged Flanges Duplex Steel S32205 Forged Flanges
S31803 Duplex Steel Forged Flange S31803 Duplex Steel Forged Flange
Duplex WERKSTOFF NR. 1.4462 Forged Flanges ASTM A182 Duplex Steel S31803 Forged Flanges

Duplex S31803/2205 Flanges

  • S31803 Flanges
    US $0.5-1000 / Piece (FOB Price)
  • Duplex Steel S32205 Pipe Flanges
    US $300-500 / Ton (FOB Price)
  • Duplex Steel S31803 Weld Neck Flanges
    US $1-900 / Piece (FOB Price)
  • ASTM A182 S31803 duplex stainless steel plate flanges
    US $0.5-1000 / Piece (FOB Price)
  • S32205 Duplex Steel Pipe Flanges
    US $1-300 / Piece (FOB Price)

Packaging

We Sumit Impex Ensure the best quality of Packing , because its play important role especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put extraordinary concern regarding packaging.

We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,

  • Boxes and Crates
  • Shrink-wrapped
  • Carton boxes
  • Wooden pallets
  • Wooden boxes
  • Wooden crates

Testings (Destructive, Non Destructive)

  • Mechanical Testing Such as Tensile, Elongation, Reduction of Area
  • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
  • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Positive Material Identification – PMI Testing
  • Chemical Analysis – Spectro Analysis
  • Intergranular Corrosion (IGC) Test
  • Pitting Resistance Test
  • Dye Penetrant Test (DP Test)
  • Micro Test
  • Macro Test
  • Hardness Test
  • Flaring Test
  • Flattening Test
  • Hydrostatic Test
  • Radiography Test
  • Ultra Sonic Test (UT)
  • Eddy Current Testing
  • Impact Test
  • Bend Test

Application Industries

These material are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthrough the origins of stainless steel lies in a lucky accident. From the smallest part of zipper to the largest building skyscraper, stainless steel is an essential part of modern life.Stainless steel’s strength, resistance to corrosion and low maintenance make it the ideal material for a wide range of applications. It is also has a long life cycle and is 100% recyclable.

  • Construction
  • Bridges
  • Petrochemical Industry
  • Ship Building
  • Engineering
  • General Structural Purposes
  • Offshore and Onshore Services

Stainless Steel Flanges Manufacturers

Country we serve / City we deliver

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