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  • Duplex SteelASTM A789 S31803 Seamless pipe
  • Duplex SteelASTM A789 S31803 Seamless pipe
  • A789 S31803 TUBE
  • A789 TUBE

Duplex S31803/2205 Pipe

  • Types: Seamless, Welded
  • Size: 1/2''~48''
  • End: Beveled End, Plain End
  • Service: Cutting, Welding, Fabricated, Customized

PRODUCT DESCRIPTION

UNS S31803 is a ferritic-austenitic stainless steel. S31803 and 2205 Pipe Tube are seamless and weldable.

Duplex S31803/2205 Pipe and Tube stanard:
ASME SA789 /ASTM A789: Standard for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service.
ASME SA790 /ASTM A790: Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe.

HT PIPE supplys the ASME SA789 S31803/2205 Seamless and Welded Tubes and ASME SA790 S31803/2205 Seamless and Welded Duplex Stainless Steel Pipe for the Oil and Gas, Refinery, Petrochemical and Power Industries.

S31803/2205 Pipe size:
Seamless Pipe size: 4 to 219mm; W. T.: 0.5 to 20mm
Seamless Tube Size: 3.35 mm To 101.6 mm (OD)
Welded Pipe size: 5.0 mm – 1219.2 mm
S31803/2205 Pipe Schedule:
SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXSS31803 Pipe Form:Round, Square, Hollow, Rectangular, Hydraulic, Straight Pipes, U bent Tube, Hollow, LSAW Tube Etc.

A789 S31803 TubeA789 S31803 Tube A790 UNS S31803 PipeA790 UNS S31803 Pipe seamless duplex ss tubeSeamless Duplex SS Tube
Duplex Welded PipeDuplex Welded Pipe S32205 PipeS32205 Pipe duplex welded tubeDuplex Welded Tube

S31803 and 2205 Duplex Pipe Chemical Composition:

Grade C≤ Mn≤ P≤ S≤ Si≤ Ni Cr Mo
S31803 0.03 2.00 0.03 0.02 1.00  4.5–6.5  21.0–23.0  2.5–3.5 0.08–0.20
S32205 0.03 2.00 0.03 0.02 1.00 4.5–6.5  22.0–23.0  3.0–3.5  0.14–0.20 
Duplex Steel S31803 and 2205 Pipe Mechanical Properties:
Mechanical properties Tensile, min, ksi[MPa] Yield, min, ksi[MPa] Elongation, %(min) Hardness, HB(max)
S31803 90 [620] 65 [450] 25 290
S32205 95 [655] 65 [450] 25 290

Equivalent Grades for S31803 Duplex Stainless Steel Pipe:

STANDARD UNS WERKSTOFF NR.
Duplex S31803/2205 S31803 1.4462

Dimensional Tolerance:

Nominal pipe size
up to 4 = ± 0.79 mm | 5 thru 8 = + 1.58 mm / - 0.79 mm
10 thru 18 = + 2.37 mm / - 0.79 mm | 20 thru 24 = + 3.18 mm / - 0.79 mm
Wall Thickness
All Diameters = - 12.5%
+ tolerance not specified
Length
+ 6.40 mm / - 0 mm
Weight
Weight = + 10% / - 1.5%

Test:
Hardness Test
Flattening Test
Pitting Resistance Test
Chemical Analysis – Spectro Analysis
Micro and MacroTest
Flaring TestIntergranular Corrosion (IGC) Test
Mechanical Testing Such as Tensile of Area
Positive Material Identification (PMI Testing)

ultrasonic test hydrostatic test UT test

Applicaiton:
Oil Tube, Gas Tube, Fluid Tube, Boiler and Heat exchanger 

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