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Duplex Steel Pipe

ASTM A790 UNS S31803 Seamless Pipe

ASTM A790 UNS S31803 is a specification in duplex steel material. The material is an alloy of steel with chromium and molybdenum in it. The addition of these materials makes the pipes stronger and much corrosion resistant. The SA 790 UNS S31803 one of the super duplex grades which is stronger and corrosion resistant. The duplex grades are divided into three groups as duplex, lean and super duplex. The super duplex is used for specific applications that operate under elevated temperatures. The Duplex UNS S31803 Pipes also possesses an elevated strength due to the production nature. The material could be hot rolled and welded or be cold drawn. The cold drawn pipes are seamless and have less absolute roughness which makes them precise in dimensions. The hot rolled and Welded A928 UNS S31803 material on the other hand is much stronger and could be used with welding applications. The ease of welding in the ASTM A790 UNS S31803 Tube makes it a choice for high pressure applications that will require extensive welding at installation.

PED approved ASTM A928 UNS S31803 Welded Tubing manufacturer in India

Searching specific sizes of Duplex 31803 Seamless Pipes? Wide stock of A790 gr UNS S31803 Welded, EFW and ERW Pipes in India

The SA 790 UNS S31803 Tubing is also highly corrosion resistant in sea water and other chloride ion rich environments. This chloride ion corrosion stress cracking resistance makes it one of the best cost effective solutions in the long run. The Duplex 31803 Seamless Pipes are used in high sensitive applications where the measurements need to be accurate. But the seamless nature reduces strength compared to the Duplex UNS S31803 Welded Pipes. The applications of A790 gr S31803 DSS ERW Pipes could be seen in sea water and marine environments, chemical industries, food processing plants, heat generators, automobile components, parts of boilers and other high temperature applications. The electric fusion welded Duplex S31803 UNS EFW Pipes can also be used interchangeably with less specific application requirements

Table Of Content

  • ASTM A790 UNS S31803 Price
  • ASTM A790 UNS S31803 Seamless Pipe Specifications
  • List Of Duplex SA 790 UNS S31803 Welded Pipe Types
  • Chemical Composition of ASTM A928 UNS S31803 Welded Tubing
  • Duplex 31803 Seamless Pipes Mechanical Behaviour
  • Heat Treatment of UNS S31803 Welded Pipe
  • SA 790 welded pipe Size Chart
  • SA 790 UNS S31803 Welded Pipe Schedule Chart

ASTM A790 UNS S31803 Price

  • ASTM A790 UNS S31803 Seamless Pipes
    FOB Price US $5 – US $10/ Kilogram
    RFQ

ASTM A790 UNS S31803 Seamless Pipe Specifications

ASTM Specification ASTM A790 ASME SA790
Applicable Standard ASTM, ASME, JIS, AISI, AMS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB
Size 4 to 219mm W. T.: 0.5 to 20mm
Welded Pipe Size 5.0 – 1219.2 mm
EFW Pipe size 5.0 – 1219.2 mm
Finish Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish, etc
Swg & Bwg 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
Schedule SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Length Single Random, Double Random, Standard & Cut length Pipe
Form Duplex 2205 Pipe are available in form of Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, “U” Shape, Pan Cake Coils etc.
Type Seamless / ERW/ EFW / Welded / Fabricated / CDW / DOM / CEW Duplex 2205 Pipe
Pipe End Plain End, Beveled End, Treaded Pipe, Screwed ends
Application Dairy Pipe, Oil Pipe, Gas Pipe, Fluid Pipe, Boiler Pipe for Chemical Industry

List Of Duplex SA 790 UNS S31803 Welded Pipe Types

ASTM A790 UNS S31803 Seamless Pipe

SA 790 welded pipe

ASME SA 790 GR UNS S31803 Pipe

SA 790 UNS S31803 Welded Pipe

Duplex 31803 Seamless Pipes

ASTM A928 UNS S31803 Welded Tubing

Chemical Composition of ASTM A928 UNS S31803 Welded Tubing

Element Composition, %
Carbon 0.03 max
Manganese 2.00 max
Phosphorus 0.03 max
Sulfur 0.02 max
Silicon 1.00 max
Nickel 4.50 – 6.50
Chromium 21.00 – 21.30
Molybdenum 2.50 – 3.50
Nitrogen 0.08 – 0.20

Duplex 31803 Seamless Pipes Mechanical Behaviour

Property Value
Tensile Strength, min, ksi, [MPa] 90 [ 620]
Yield Strength, min, ksi [MPa] 65 [450]
Elongation in 2 in. or 50mm, min, % 25
Hardness, max HBW HRC
290 30

Heat Treatment of UNS S31803 Welded Pipe

Process Value
Annealing Temperature °F [°C] 1870 – 2010 [1020 – 1100]
Quenching Rapid Cooling in Air or Water

SA 790 welded pipe Size Chart

13.72 1.65 1/4 10S 0.50
13.72 2.24 1/4 40S 0.64
13.72 3.02 1/4 80S 0.81
17.15 1.65 3/8 10S 0.64
17.15 2.31 3/8 40S 0.86
17.15 3.20 3/8 80S 1.12
21.34 2.11 1/2 10S 1.02
21.34 2.77 1/2 40S 1.29
21.34 3.73 1/2 80S 1.65
26.67 2.11 3/4 10S 1.30
26.67 2.87 3/4 40S 1.71
26.67 3.91 3/4 80S 2.23
33.40 2.77 1 10S 2.13
33.40 3.38 1 40S 2.54
33.40 4.55 1 80S 3.29
33.40 6.352) 1 160 4.30
42.16 2.77 1¼ 10S 2.73
42.16 3.56 1¼ 40S 3.44
42.16 4.85 1¼ 80S 4.53
42.16 6.352) 1¼ 160 5.69
48.26 2.77 1½ 10S 3.16
48.26 3.68 1½ 40S 4.11
48.26 5.08 1½ 80S 5.49
60.33 2.77 2 10S 3.99
60.33 3.91 2 40S 5.52
60.33 5.54 2 80S 7.60
60.33 8.742) 2 160 11.29
73.03 3.05 2½ 10S 5.35
73.03 5.16 2½ 40S 8.77
73.03 7.01 2½ 80S 11.59
88.90 3.05 3 10S 6.56
88.90 5.49 3 40S 11.47
88.90 7.62 3 80S 15.51
88.90 11.132) 3 160 21.67
101.60 3.05 3½ 10S 7.53
101.60 5.74 3½ 40S 13.78
101.60 8.08 3½ 80S 18.92
114.30 3.05 4 10S 8.50
114.30 6.02 4 40S 16.32
114.30 8.56 4 80S 22.67
114.30 13.492) 4 160 34.05
141.30 6.55 5 40S 22.10
141.30 9.53 5 80S 31.44
141.30 15.882) 5 160 49.87
168.28 3.4 6 10S 14.04
168.28 7.11 6 40S 28.69
168.28 10.97 6 80S 43.21
168.28 14.27 6 120 54.75
168.28 18.262) 6 160 68.59
219.08 8.18 8 40S 43.20
219.08 12.7 8 80S 65.63
219.08 18.23 8 120 91.30
219.08 23.012) 8 160 112.97

SA 790 UNS S31803 Welded Pipe Schedule Chart

1/8″ IPS(.405″O. D.) 3 1/2″ IPS( 4.000″O. D.)
SCH 40, 80 SCH 10, 40, 80, 160, XXH
1/4″ IPS(.540″O. D.) 4″ IPS(4.500″O. D.)
SCH 10, 40, 80 SCH 10, 40, 80, 160, XXH
3/8″ IPS(.675″O. D.) 5″ IPS( 5.563″O. D.)
SCH 10, 40, 80 SCH 10, 40, 80, 160, XXH
1/2″ IPS(.840″O. D.) 6″ IPS(6.625″O. D.)
SCH 5, 10, 40, 80, 160, XXH SCH 5, 10, 40, 80, 120, 160, XXH
3/4″ IPS(1.050″O. D.) 8 ” IPS(8.625″O. D.)
SCH 10, 40, 80, 160, XXH SCH 5, 10, 40, 80, 120, 160, XXH
1″ IPS:(1.315′O. D.) 10″ IPS(10.750″O. D.)
SCH 5, 10, 40, 80, 160, XXH SCH 10, 20, 40, 80 (.500), TRUE 80(.500)
1-1/4″ IPS(1.660″O. D.) 12″ IPS(12.750″O. D.)
SCH 10, 40, 80, 160, XXH SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500)
1-1/2″ IPS(1.900″O. D.) 14″ IPS(14.000″O. D.)
SCH 10, 40, 80, 160, XXH SCH10 (.188), SCH40 (.375)
2″ IPS(2.375″O. D.) 16″ IPS(16.000″O. D.)
SCH 10, 40, 80, 160, XXH SCH10(.188), SCH40(.375)
2 1/2″ IPS(2.875″O. D.) 18″ IPS (18.000″O. D.)
SCH 10, 40, 80, 160, XXH SCH-40 (.375)
3″ IPS( 3.500″O. D.)
SCH 5, 10, 40, 80, 160, XXH

India’s widest Inventory for

Ready stock of ASME SA 790 GR UNS S31803 Stainless Steel Hollow, Round and Square Pipes in Mumbai
  • Duplex 2205 S31803 16 inch Seamless Steel Pipes
    FOB Price US $1,500 – US $3,000/ Ton
  • ASTM A790 uns s31803 duplex seamless pipes
    FOB Price US $560 – US $800/ Metric Ton
  • Duplex Steel UNS S31803 seamless Pipes
    FOB Price US $5 – US $10/ Kilogram
  • ASTM A790 Uns S31803 Duplex Stainless Steel Pipes
    FOB Price US $1,799 – US $1,999/ Ton
  • DN40 STD ASME 2205 UNS S31803 Seamless pipes
    FOB Price US $1,100/ Ton
  • Duplex ASTM A790 uns s31803 pipes
    FOB Price US $520 – US $650/ Ton
  • uns s31803 d2n 1.4462 Stainless steel pipes
    FOB Price US $650 – US $1,800/ Ton
  • 16 Inch UNS S31803 F51 Duplex Seamless Pipes
    FOB Price US $5,000 – US $8,000/ Ton

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