ASTM A790 UNS 31260 Duplex Stainless Steel seamless & welded pipe manufacturer in India

Unlike conventionally used stainless steel alloys, the term super is associated with Alloy F255, due to its highly alloyed chemistry. Businesses that belong to the pulp & paper industry as well as textile industries use this ASTM A789 UNS 31260 Duplex Stainless Steel Pipe because it offers resistance to corrosion. The corrosion resistance properties of this alloy are significantly much higher in comparison to conventional stainless steel. The fore mentioned industries usually use high amounts of corrosive chlorine compounds in the form of bleaches or scouring agents. Chlorine solutions stress steels, as a result of which, the stainless steel component may fail. Such problems are deemed dangerous in areas involving the transportation of highly volatile substances including gases. Gases creep out of the cracked pipes and the leak proves to be fatally dangerous to individuals working in the area. However, the introduction of this alloy meant that the Duplex Steel UNS S31260 EN 1.4410 Pipe could be used across the transportation of said substances, without fear of failure and leaks.

Ferralium 225 is an alloy that resists cavitation. Cavitation occurs when there is a rapid change of force in a liquid. In applications, cavitation results in the development of small vapor-filled cavities in those zones where the pressure tends to be comparatively lower. Since this material is resistant to cavitation, Alloy F255 UNS 31260 Pipes are well suited for use in low pressure applications. A common occurrence in pipes is abrasion, during the transportation of liquid or gaseous media. A high velocity transport causes friction between the walls of a pipe and the media being transported across. Abrasion to a greater degree is also responsible for the failure of the pipe. However, since the ASME SA 789 UNS 31260 Welded Pipe resists abrasion, coupled with its high yield strength, the durability of said pipes is much higher. One of the more popular characteristics of this alloy is perhaps its yield strength. The yield strength of UNS S32550 grade F61 Seamless Pipe is almost two times higher than that of standard austenitic alloys including carpenter 20 and duplex stainless steel 2205. At a temperature of 40°C, the ASTM A790 UNS 31260 Pipe exhibits pitting resistance much higher than that of duplex stainless steel 2205.

ASTM A789 UNS 31260 Duplex Stainless Steel Pipe

ASTM A789 UNS 31260 Duplex Stainless Steel Pipe

ASTM A790 UNS 31260 Duplex Steel Seamless Pipe

ASTM A790 UNS 31260 Duplex Steel Seamless Pipe

ASME SA 789 UNS 31260 Welded Pipe

ASME SA 789 UNS 31260 Welded Pipe

Table of contents

ASTM A789 UNS 31260 Duplex Stainless Steel Pipe sizes

ASTM A789 UNS 31260 Seamless Pipe

  • Size: 4 - 219mm
  • Thickness : 0.5 - 20mm
  • Length: Single, Double Random & Cut Length

ASTM A789 UNS 31260 Welded Pipe

  • Size: 5.0 - 1219.2 mm
  • Thickness : 0.5 - 20mm
  • Length: Single, Double Random & Cut Length

Duplex Steel UNS S32550 grade F61 Seamless Pipe Specification

ASTM A789 UNS 31260 Duplex Stainless Steel Pipe International Specification ASTM A789/ SA 789, ASTM A790 / SA 790
Standard Specification ASME, ASTM, AISI, AMS, JIS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB
ASTM A789 UNS 31260 Seamless Pipe Size
  • OD: 4 to 219mm
  • Wall Thickness: 0.5 to 20mm
Duplex Steel UNS S32550 grade F61 Welded Pipe Size
  • OD: 5.0 - 1219.2 mm
ASTM A790 UNS 31260 Duplex Stainless Steel EFW Pipe Size
  • OD: 5.0 - 1219.2 mm
SA 789 UNS 31260 Duplex Stainless Steel Pipe WT SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
ASTM A789 31260 Duplex Pipe manufacturing techniques Seamless / ERW / EFW/ Welded / Fabricated / CDW/ LSAW/ Seam-Welded / Redrawn
Origin of UNS S31260 Duplex Stainless Steel pipe material Indian, European, Korean, Japanese
ASME SA 789 31260 Duplex Steel Pipe End Types
  • BE : Beveled end
  • BBE : Bevel both ends
  • BLE : Bevel large end
  • BSE : Bevel small end
  • TOE / POE = Treaded One End / Plain One End
  • TOE / BOE = Treaded One End / Beveled One End
  • POE / BOE = Plain One End / Beveled One End
  • TBE = Treaded Both Ends
  • PBE = Plain Both Ends
Form Round, Square, Rectangular
UNS S31260 Stainless Steel Pipe Length Single Random, Double Random & Required Length End: Plain End, Beveled End, Treaded
SA 789 UNS 31260 Duplex Steel Pipe Delivery Condition Annealed and Pickled, Hot Finished, Polished, Bright Annealed, Cold Drawn
Alloy F255 UNS 31260 Pipe Packing
  • Ply Wooden Boxes
  • PE Fabric Bundles
  • Steel Strips Bundled
  • Standard seaworthy export packing
  • Plastic Bags, or as required
A789 UNS 31260 Duplex Steel Pipe Value Added Services Cut to size, thread, and groove
Port Mumbai, India
Stocking distributor of leading ASTM A789 UNS 31260 Duplex Stainless Steel Pipe manufacturers
  • Sanyo Special Steel, Japan make ASTM A789 UNS 31260 Pipe
  • Schoeller Bleckmann, Austria make Duplex Steel UNS S32550 grade F61 Seamless Pipe
  • Nippon Steel Corporation, Japan make ASTM A790 UNS 31260 Duplex Stainless Steel Pipe
  • Sumitomo Metals, Japan make ASME SA 789 UNS 31260 Pipes
  • Seah Steel Corporation, Korea make SA 789 UNS 31260 Duplex Stainless Steel Seamless Pipe
  • Kobe Special Tube, Japan make ASTM A789 31260 Duplex Pipe
  • Tubacex Tubos Inoxidables S.A., Spain make UNS S31260 Duplex Stainless Steel Pipe
A789 UNS 31260 Duplex Steel Pipe Dimensional Specification ANSI/ ASME B36.10, B36.19, B2.1
Marking on SA 789 31260 Duplex Steel Pipe
  • Specification
  • Material Grade
  • Nominal Size
  • Schedule or Wall Thickness
  • Method of Manufacturing (Seamless or Welded)
  • Heat Number
  • Manufacturer’s Name or Custom Logo - on request
Marked Pipe Sample: ASTM A790 UNS 31260 14" NB SCH 40S SEAMLESS HEAT NO. XXXX

ASTM A790 UNS 31260 Duplex Stainless Steel Pipe Inspection & Test reports

  • Mill Test Certificates with all ASTM A789 UNS 31260 Duplex Stainless Steel Pipe
  • EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
  • Chemical Reports
  • Mechanical Reports
  • PMI Test Reports
  • Visual Inspection Reports
  • Third Party Inspection for ASTM A789 UNS 31260 Pipe
  • NABL Approved Lab Reports
  • Destructive Test Report
  • Non Destructive Test Reports
  • 100% Radiography Test Report
  • Fumigation Certificates
  • Raw Materials Certificate
  • Moisture testing
  • Heat Treatment Charts
  • Surface roughness measurement
  • HS Code Commercial Invoice
  • Laboratory Test Certificate from Govt. Approved Lab
  • Form A for Generalized System of Preferences (GSP)

ASME SA 789 UNS 31260 Pipe Price List ex Mumbai

Seamless Pipe ASTM A789 UNS 31260 INR 550/Kg
SA240 UNS S31260 Duplex Steel Plate (6 X 1430 X 4350 mm) INR 340/Kg

Contact us for Free sample & quote or mail us on export@oshwin.com.

Types of ASTM A789 UNS 31260 Duplex Stainless Steel Pipe

ASTM A789 UNS 31260 Welded Pipe

ASTM A789 UNS 31260 Welded Pipe

Duplex Steel UNS S32550 grade F61 Seamless Pipe

Duplex Steel UNS S32550 grade F61 Seamless Pipe

ASTM A790 UNS 31260 Duplex Stainless Steel Round Pipe

ASTM A790 UNS 31260 Duplex Stainless Steel Round Pipe

ASME SA 789 UNS 31260 Rectangular Pipe

ASME SA 789 UNS 31260 Rectangular Pipe

SA 789 UNS 31260 Duplex Stainless Steel Square Pipe

SA 789 UNS 31260 Duplex Stainless Steel Square Pipe

ASTM A789 31260 Duplex Schedule 5S Pipe

ASTM A789 31260 Duplex Schedule 5S Pipe

UNS S31260 Duplex Stainless Steel Schedule 40S Seamless Pipe

UNS S31260 Duplex Stainless Steel Schedule 40S Seamless Pipe

ASME SA 789 31260 Duplex Steel Polished Pipe

ASME SA 789 31260 Duplex Steel Polished Pipe

UNS S31260 Stainless Steel Exhaust Pipe

UNS S31260 Stainless Steel Exhaust Pipe

SA 789 UNS 31260 Duplex Steel Thin Wall Pipe

SA 789 UNS 31260 Duplex Steel Thin Wall Pipe

Alloy F255 UNS 31260 Custom Pipe

Alloy F255 UNS 31260 Custom Pipe

A789 UNS 31260 Duplex Steel Cold Drawn Seamless Pipe

A789 UNS 31260 Duplex Steel Cold Drawn Seamless Pipe

SA 789 31260 Duplex Steel Clad Pipe

SA 789 31260 Duplex Steel Clad Pipe

A789 31260 Duplex Steel ERW Pipe

A789 31260 Duplex Steel ERW Pipe

1.4410 UNS 31260 EFW Pipe

1.4410 UNS 31260 EFW Pipe

UNS S31260 EN 1.4410 SCH 40 Seamless Pipe

UNS S31260 EN 1.4410 SCH 40 Seamless Pipe

Complete range of SA 789 UNS 31260 Duplex Stainless Steel Pipe material

ASTM A789 UNS 31260 Hot Finished Pipe Schedule 40S Duplex Steel UNS S32550 grade F61 Pipe
A789 31260 Duplex Steel Capillary Pipes Small diameter Duplex Steel UNS S32550 grade F61 pipes
1.4410 UNS 31260 Clad Pipes ASTM A790 UNS 31260 Duplex Stainless Steel Annealed pipes
Cold Drawn ASTM A790 UNS 31260 Duplex Stainless Steel Pipe ASME SA 789 UNS 31260 Seam Welded Pipe
SA 789 UNS 31260 Duplex Stainless Steel Hollow Pipes A789 31260 Duplex Steel High pressure Pipes
SA 789 UNS 31260 Duplex Stainless Steel Overlay Pipe ASTM A789 31260 Duplex Bush Hex Pipe
ASTM A790 UNS 31260 Duplex Stainless Steel SMLS Pipes ASME SA 789 UNS 31260 Hexagonal Pipes
Thick Wall UNS S31260 Duplex Stainless Steel Pipe Thin Wall ASME SA 789 31260 Duplex Steel Pipe
UNS S31260 Stainless Steel Cold Drawn Seamless Pipe High Temperature SA 789 UNS 31260 Duplex Steel Pipe
Seamless Alloy F255 UNS 31260 Pipe A789 UNS 31260 Duplex Steel Welded Pipe
UNS S31260 Stainless Steel Round Pipes ASTM A789 31260 Duplex Fabricated Pipes
Alloy F255 UNS 31260 Square Pipes SA 789 31260 Duplex Steel Schedule 5S Pipes
SA 789 31260 Duplex Steel ERW Pipe A789 31260 Duplex Steel EFW Pipe
ASTM A789 UNS 31260 CDW Pipes Duplex Steel UNS S32550 grade F61 Rectangular Pipes
UNS S31260 Duplex Stainless Steel Custom Pipes ASME SA 789 31260 Duplex Steel Beveled End Pipes
A789 UNS 31260 Duplex Steel Schedule 40 Pipes Welded SA 789 UNS 31260 Duplex Steel Cold Drawn Pipes
SA 789 31260 Duplex Steel Polished Pipes ASTM A789 UNS 31260 Exhaust Pipes
UNS S31260 EN 1.4410 Rectangle Pipes Cold Drawn ASME SA 789 UNS 31260 Seamless Pipes

UNS S31260 Duplex Stainless Steel Pipe Tensile and Yield Strength

UNS S31260 Duplex Stainless Steel Pipe Tensile and Yield Strength

UNS S31260 Stainless Steel Pipe Schedule and Wall Thickness

Nominal O.D. Inches 10s 10 40s & Std 40 80s & E.H. 80 160
1/8 .405 .049 .049 .068 .068 .095 .095
1/4 .540 .065 .065 .088 .088 .119 .119
3/8 .675 .065 .065 .091 .091 .126 .126
1/2 .840 .083 .083 .109 .109 .147 .147 .187
3/4 1.050 .083 .083 .113 .113 .154 .154 .218
1 1.315 .109 .109 .133 .133 .179 .179 .250
1 1/4 1.660 .109 .109 .140 .140 .191 .191 .250
1 1/2 1.900 .109 .109 .145 .145 .200 .200 .281
2 2.375 .109 .109 .154 .154 .218 .218 .343
2 1/2 2.875 .120 .120 .203 .203 .276 .276 .375
3 3.500 .120 .120 .216 .216 .300 .300 .437
3 1/2 4.000 .120 .120 .226 .226 .318 .318
4 4.500 .120 .120 .237 .237 .337 .337 .531
4 1/2 5.000 .247 .355
5 5.563 .134 .134 .258 .258 .375 .375 .625
6 6.625 .134 .134 .280 .280 .432 .432 .718
7 7.625 .301 .500
8 8.625 .148 .148 .322 .322 .500 .500 .906
9 9.625 .342 .500
10 10.750 .165 .165 .365 .365 .500 .593 1.125
11 11.750 .375 .500
12 12.750 .180 .180 .375 .406 .500 .687 1.312
14 14.000 .188 .250 .375 .437 .500 .750 1.406
16 16.000 .188 .250 .375 .500 .500 .843 1.593
18 18.000 .188 .250 .375 .562 .500 .937 1.781

SA 789 UNS 31260 Duplex Steel Seamless Pipe Weight Chart

NPS Outside Diameter (OD) Wall Thickness (WT) Weight Weight
in mm in mm Sched kg/Mtr Lb/ft
1/2" 0.840 21 0.109 2.769 40 STD 1.268 0.851
0.147 3.734 80 STD 1.621 1.088
3/4" 1.050 27 0.113 2.870 40 STD 1.684 1.131
0.154 3.912 80 STD 2.195 1.474
1" 1.315 33 0.133 3.378 40 STD 2.501 1.679
0.179 4.547 80 STD 3.325 2.172
1 1/4" 1.660 42 0.140 3.556 40 STD 3.385 2.273
0.191 4.851 80 STD 4.464 2.997
1 1/2" 1.900 48 0.145 3.683 40 STD 4.048 2.718
0.200 5.080 80 STD 5.409 3.361
2" 2.375 60 0.154 3.912 40 STD 5.441 3.653
0.218 5.537 80 STD 7.480 5.022
2 1/2" 2.875 73 0.203 5.516 40 STD 8.629 5.793
0.276 7.010 80 STD 11.411 7.661
3" 3.500 89 0.216 5.486 40 STD 11.284 7.576
0.300 7.620 80 STD 15.272 10.253
4" 4.500 114 0.237 6.020 16.073 10.790
0.337 8.560 22.318 14.983
6" 6.625 168 0.188 4.775 19.252 12.924
0.203 5.516 20.739 13.923
0.219 5.563 22.318 14.983
0.250 6.350 25.354 17.021
0.280 7.112 40 STD 58.263 18.974
0.312 7.925 31.334 21.036
0.375 9.525 37.285 25.031
0.432 10.973 80 XHY 42.561 28.573
0.500 12.700 48.719 32.708
8" 8.625 219 0.188 4.775 25.233 16.940
0.203 5.156 27.198 18.259
0.219 5.563 29.286 19.661
0.250 6.350 20 33.308 22.361
0.277 7.036 30 36.786 24.696
0.322 8.179 40 42.352 28.554
0.375 9.525 49.216 33.041
0.406 10.312 60 53.085 35.638
0.500 12.700 80 XHY 64.627 43.388
10" 10.750 273 0.188 4.775 31.588 21.207
0.219 5.563 36.689 24.631
0.250 6.350 20 41.759 28.035
0.307 7.798 30 51.002 34.240
0.344 8.738 56.946 38.231
0.365 9.271 40 STD 63.301 40.483
0.438 11.125 71.852 48.238
0.500 12.700 60 XHY 81.530 54.735
0.594 15.088 80 95.969 64.429
12" 12.750 324 0.188 4.775 37.570 25.222
0.219 5.563 43.657 29.309
0.250 6.350 49.713 33.375
0.281 7.137 55.739 37.420
0.312 7.925 61.735 41.445
0.375 9.525 73.824 49.562
0.406 10.312 79.727 53.525
0.500 12.700 97.438 65.415
0.562 14.275 108.966 73.154
14" 14.000 356 0.188 4.775 41.308 27.732
0.219 5.563 48.012 32.233
0.250 6.350 20 54.685 36.713
0.281 7.137 61.327 41.172
0.312 7.925 67.939 45.611
0.375 9.525 STD 81.281 54.568
0.438 11.125 40 94.498 63.441
0.500 12.700 XHY 107.381 72.090
0.625 15.875 132.983 89.278
16” 16.000 406 0.188 4.775 47.290 21.748
0.219 5.563 54.980 36.910
0.250 6.350 10 62.639 42.053
0.281 7.137 70.268 47.174
0.312 7.925 20 77.866 52.275
0.344 8.738 85.677 57.519
0.375 9.525

30

STD

 93.213 62.578
0.438 11.125 108.433 72.797
0.500 12.700

40

XHY

 123.289 82.770
18" 18.000 457 0.219 5.563 61.948 41.588
0.250 6.350 70.593 47.393
0.281 7.137 79.208 53.176
0.312 7.925 20 87.792 58.939
0.375 9.525 STD 105.144 70.588
0.438 11.125 30 122.369 82.152
0.500 12.700 XHY 139.198 93.450
0.562 14.275 40 155.904 104.666
0.625 15.875 172.754 115.978
20" 20.000 508 0.250 6.350 78.547 52.733
0.282 7.163 88.458 59.386
0.312 7.925 97.719 65.604
0.375 9.525 20 STD 117.075 78.598
0.438 11.125 136.305 91.508
0.500 12.700 30 XHY 155.106 104.130
0.594 15.088 40 183.378 123.110
0.625 15.875 192.640 129.328
0.688 17.475 211.368 141.901
24" 24.000 610 0.250 6.350 94.456 63.413
0.281 7.137 106.029 71.183
0.312 7.925 117.573 18.932
0.375 9.525 20 STD 140.938 64.618
0.438 11.125 164.176 110.219
0.500 12.700 XHY 186.923 125.490
0.625 15.875 232.410 156.028
0.688 17.475 40 255.148 171.293
0.750 19.050 277.401 186.233
30" 30.000 762 0.250 6.350 118.318 79.433
0.281 7.137 132.851 89.189
0.312 7.925 10 147.353 98.925
0.375 9.525 STD 176.731 118.648
0.438 11.125 205.983 138.286
0.500 12.700 20 XHY 234.647 157.530
0.625 15.875 30 292.066 196.078
0.688 17.475 320.817 215.380
0.750 19.050 348.988 234.293
36" 36.000 914 0.250 6.350 142.180 95.453
0.281 7.137 159.672 107.196
0.312 7.925 10 177.133 118.918
0.375 9.525 STD 215.525 142.678
0.438 11.125 247.790 166.353
0.500 12.700 20 XHY 282.372 198.570
0.625 15.875 351.723 236.128

0.688

 17.475 386.487 259.467

0.750

 19.050 420.576 282.353
42" 42.000 1067 0.312 7.925 206.914 138.911
0.375 9.525 STD 248.319 166.708
0.500 12.700 XHY 33.097 221.610
0.750 19.050 492.163 330.413
48" 48.000 1219 0.375 9.525 STD 284.112 190.738
0.438 11.125 331.404 222.487
0.500 12.700 XHY 377.822 253.650
0.750 19.050 563.750 378.473
0.875 22.225 655.969 440.383

Schedule 40 A789 UNS 31260 Duplex Steel Pipe thickness and dimensions

Nominal size [inches] Outside diameter (OD) [inches] Outside diameter (OD) [mm] Wall thickness [inches] Wall thickness [mm] Weight [lb/ft] Weight [kg/m]
1/8" NPS 6 0.41 10.3 0.068 1.73 0.24 0.37
1/4" NPS 8 0.54 13.7 0.088 2.24 0.42 0.63
3/8" NPS 10 0.68 17.1 0.091 2.31 0.57 0.84
1/2" NPS 15 0.84 21.3 0.109 2.77 0.85 1.27
3/4" NPS 20 1.05 26.7 0.113 2.87 1.13 1.69
1" NPS 25 1.32 33.4 0.133 3.38 1.68 2.5
1 1/4" NPS 32 1.66 42.2 0.14 3.56 2.27 3.39
1 1/2" NPS 40 1.9 48.3 0.145 3.68 2.72 4.05
2" NPS 50 2.375 60.3 0.154 3.91 3.65 5.44
2 1/2" NPS 65 2.875 73.0 0.203 5.16 5.79 8.63
3" NPS 80 3.5 88.9 0.216 5.49 7.58 11.29
3 1/2" NPS 90 4.0 101.6 0.226 5.74 9.11 13.57
4" NPS 100 4.5 114.3 0.237 6.02 10.79 16.07
5" NPS 125 5.563 141.3 0.258 6.55 14.62 21.77
6" NPS 150 6.625 168.3 0.28 7.11 18.97 28.26
8" NPS 200 8.625 219.1 0.322 8.18 28.55 42.55
10" NPS 250 10.75 273.0 0.365 9.27 40.48 60.31
12" NPS 300 12.75 323.8 0.406 10.31 53.52 79.73
14" NPS 350 14.0 355.6 0.437 11.13 54.57 94.55
16" NPS 400 16.0 406.4 0.5 12.7 82.77 123.3
18" NPS 450 18.0 457.0 0.562 14.27 104.67 155.8
20" NPS 500 20.0 508.0 0.594 15.09 123.11 183.42
24" NPS 600 24.0 610.0 0.688 17.48 171.29 255.41
32" NPS 800 32.0 813.0 0.688 17.48 230.08 342.91
  • ASME/ ANSI B36.10/ B36.19 - Imperial Units
  • 1 cm2 = 10-4 m2 = 0.155 in2
  • 1 kg = 2.2046 lb
  • 1 m = 3.28 ft

SA 789 31260 Duplex Steel Seamless Pipe Chemical Composition

Element Composition, %
Carbon 0.03 max
Manganese 1.00 max
Phosphorus 0.030 max
Sulfur 0.030 max
Silicon 0.75 max
Nickel 5.50 - 7.50
Chromium 24.00 - 26.00
Molybdenum 2.50 - 3.50
Nitrogen 0.10 - 0.30
Copper 0.20 - 0.80
Tungsten 0.10 - 0.50

A789 31260 Duplex Steel Pipe Mechanical Properties

Property Value
Tensile Stress, min, ksi, [MPa] 100 [690]
Yield Stress, min, ksi [MPa] 65 [450]
Elongation in 2 in. or 50mm, min, % 25
Hardness, max HBW HRC
-- --

1.4410 UNS 31260 Equivalent Material

ASTM A790/928 UNS EN 10216-2 Seamless / EN 10217-5 Welded Material No. (WNr)
S31260 X2CrNiMoN25-7-4 1.4410