Super duplex pipe

Super duplex pipe

Super duplex stainless steel is the third-generation combination of austenitic and ferrite alloys. With higher chromium composition of over 25%, the PREN or pitting resistance equivalent number of super duplex alloy will be over 40. Hence it applies in many demanding applications like offshore oil & gas, the food & beverage industry, etc.

Super Duplex pipe has high corrosion resistance as it is made from super duplex steel to have additional properties. Though expensive because of its higher nickel content finds use in many more applications. It includes heat exchangers, cargo tanks, rotors, shafts, hydraulic lines, etc.

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Find super duplex stainless steel pipe suppliers in UAE. See SDSS vs duplex

Super duplex pipe specification


Super Duplex Pipe Specification

Super duplex stainless steel pipe dimensions Super duplex steel pipe wall thickness Super duplex steel pipe length
  • Super duplex steel seamless pipe size: 1 / 2″ to 8″ NB
  • Super duplex SS welded pipe size: 6” to 24” NB
  • OD: 6 to 630 mm
  • 0.3 – 50 mm
  • Thinner wall thickness

SDSS pipe wall thickness can be reduced by up to 50%, contact above super duplex pipe suppliers for more details

 

  • Single Random
  • Double Random
  • Cut Length

Searching ex-stock of super duplex pipe in Saudi Arabia? Contact top 10 genuine stockists for all sizes and wall thickness, also check value added services and latest price list

Required list of super duplex stainless steel pipe mechanical test American standard for OD and thickness super duplex steel pipe manufacturing process
  • Tension test
  • Hardness test
  • Flange test (for SDSS welded pipe)
  • 100% PMI tested
  • Flaring test (for stainless steel super duplex seamless pipe)
  • Reverse flattening test
  • ASTM A790
  • ASTM A789
  • Super duplex alloy cold drawn pipe
  • Stainless super duplex Cold Finished Seamless pipe
  • SDSS super duplex stainless steel precision cold rolled pipe
  • Super duplex SS Hot Finished Seamless pipe
  • Super duplex steel cold rolled pipe
European standard SDSS bright annealed pipe end SDSS pipe manufacturing type
  • EN 10296-2 (welded pipe)
  • EN 10312 (welded pipe)
  • EN 10297-2 (seamless pipe)
  • EN 10217-7 (welded pipe)
  • EN 10216-5 (seamless & welded pipe)
  • PE (Plain End)
  • BE (Beveled Ends)
  • Super duplex stainless seamless pipe
  • SS super duplex welded pipe
  • Super duplex stainless steel ERW pipe
  • Super duplex alloy EFW pipe
super duplex pipe schedule chart Meet standards SDSS super duplex stainless steel round pipe surface finish and treatments
  • 4 Inch
  • Schedule 5 / 5S
  • SCH 10 super duplex stainless steel seamless pipe (Most selling)
  • SCH 20
  • SCH 30
  • SCH 40 super duplex steel welded pipe (Most selling)
  • SCH 40S
  • SCH 80 / 80S
  • SCH 120
  • SCH 160
  • Standard (SCH STD)
  • Ex-Standard (XS)
  • Double Extra Strong (XSS)
  • DIN 17458
  • EN 10088-3
  • EN 10216 – 2
  • ASME B36.19
  • EN 10216 – 5
  • ASME B36.19M
  • NSF 61
  • EN 10217-7
  • EN 10088-2
  • DIN 17456
  • Cleaned
  • Precleaned
  • Pickled
  • Passivated
Super duplex steel pipe finish QC and SS super duplex bright annealed pipe supporting documents List of leading stainless steel super duplex cold finished seamless pipe manufacturers
  • Annealed & Pickled (A&P)
  • Matt finish
  • 2B
  • 320 grit
  • 180 grit polished
  • Cold Drawn
  • No.4
  • 600 grit
  • Mirror
  • BA polishing
  • Bright Annealed
  • 400 grit
  • Solution annealed super duplex steel pipe
Refer these details before buying SDSS solution annealed pipe from suppliers, stockholders, traders, importers, stockist, or manufacturers

  • Origin of material
  • Super duplex welded pipe material
  • Schedule & size as per the work order
  • steel super duplex round pipe detailed inspection plan (appearance
  • Verify quantity
  • Labeling verification
  • integrity
  • Check SDSS rectangular pipe dimensions
  • MTC EN 10204 type 3.1
  • packaging etc)
  • QC/ Inspection reports

Buy these make bulk stock from verified super duplex pipe suppliers in UAE at dealer price

  • MACSTEEL, Gauteng (South Africa)
  • JFE, Japan
  • AL JAZEERA, Oman
  • Bristol Metals, USA
  • Outokumpu, Finland (Europe)
  • Steelmor, Gauteng (South Africa)
  • Nippon Yakin Kogyo Co., Ltd., Japan
  • ArcelorMittal, Luxembourg (Europe)
  • Tenaris, Luxembourg (Europe)
  • Sosta, Italy
  • Aperam, Luxembourg (Europe)
  • ThyssenKrupp AG, Germany
  • Tubecon, Pretoria (South Africa)
  • Jiangsu Shagang, China
  • Nippon Steel Corporation, Japan
  • Sandvik, Sweden
  • POSCO, South Korea
  • SMM Oman
  • Baosteel, China
  • Nippon Steel & Sumitomo Metal Corporation, Japan
  • Acerinox, Spain
  • Tata Steel, India
SDSS super duplex stainless steel EFW pipe value added services super duplex stainless steel square pipe tolerance Super duplex stainless square pipe standard
  • Cutting
  • Threading
  • Beveling
  • Polishing
  • ±10%
  • ASTM
  • DIN
  • JIS
  • GOST
  • EN

Do you need a super duplex steel pipe in a seamless or welded form in a specific size from a reliable stockist in the Middle East or Africa? Your search is over here. Look at the material grades.

Equivalent grades of Super duplex stainless steel pipes

Material Grade EN/ DIN/ Wnr UNS Flanges Fasteners Welding Electrode
Super duplex pipe
  • 1.4410
  • S32950
  • S32750
Duplex pipe
  • 1.4462
  • UNS S31803
  • UNS S32205

Super duplex steel pipe chemical composition

Super duplex stainless steel ASTM grades C P N Mn Si S Ni Cr Cu Mo Other
UNS S32750 0.030 0.035 0.24-0.32 1.20 0.80 0.020 6.0-8.0 24.0-26.0 0.50 3.0-5.0
UNS S32760 0.030 0.030 0.20-0.30 1.00 1.00 0.010 6.0-8.0 24.0-26.0 0.50-1.00 3.0-4.0 W 0.50-1.0

SDSS round pipe mechanical properties

Grade Yield strength, ksi [MPa] Tensile strength, ksi [MPa] Super duplex stainless steel hardness, Brinell Elongation in 2 inch, or 50mm, minimum
S32750 80 [550] min 116 [800] min 310 Max 15 %
S32760 80 [550] min 109 [750] min 300 Max 25 %

Super Duplex Pipe Properties

Welding rod for super duplex stainless steel pipe

  • AWS A5.11
  • AWS A5.1
  • E2209-16 Consumable Welding Electrodes
  • E2594-16 Industrial Welding Electrode
  • E2594-16 Stick Electrodes

SS super duplex ERW pipe properties

UNS Super duplex stainless steel density (g/cm 3) Density (lb/in 3) Melting Point Melting Point
S32750 / S32760 7.8 0.281 2460 °F 1350 °C

Types of super duplex stainless steel pipe

Super duplex seamless pipe

Super duplex seamless pipe

SDSS welded pipe

SDSS welded pipe

Super duplex clad pipe

Super duplex clad pipe

SDSS round pipes

SDSS round pipes

Super duplex ERW pipe

Super duplex ERW pipe

Polished Super duplex pipes

Polished Super duplex pipes

Other stock available for quick delivery in Saudi Arabia, Oman, Qatar & UAE

  • Super duplex stainless EFW pipe
  • SDSS square pipe
  • Super duplex stainless steel bright annealed pipe
  • Solution annealed super duplex pipe (SCH 5S to XXS)
  • Stainless steel super duplex cold finished seamless pipe
  • hot finished super duplex seamless pipe
  • Super duplex rectangular pipe

Super duplex pipe weight chart

NPS OD Wall Thickness Weight Weight
milimeter inch Sched milimeter inch Lb/ft kilogram/Mtr
1/2″ 21 .840 40 STD 2.769 .109 .851 1.268
3/4″ 27 1.050 40 STD 2.870 .113 1.131 1.684
1″ 33 1.315 40 STD 3.378 .133 1.679 2.501
1 1/4″ 42 1.660 40 STD 3.556 .140 2.273 3.385
1 1/2″ 48 1.900 40 STD 3.683 .145 2.718 4.048
2″ 60 2.375 40 STD 3.912 .154 3.653 5.441
2 1/2″ 73 2.875 40 STD 5.516 .203 5.793 8.629
3″ 89 3.500 40 STD 5.486 .216 7.576 11.284
4″ 114 4.500 6.020 .237 1.790 16.073
6″ 168 6.625 4.775 .188 12.924 19.252
5.563 .219 14.983 22.318
40 STD 7.112 .280 18.974 58.263
9.525 .375 25.031 37.285
12.700 .500 32.708 48.719
8″ 219 8.625 4.775 .188 16.940 25.233
5.563 .219 19.661 29.286
30 7.036 .277 24.696 36.786
9.525 .375 33.041 49.216
10″ 273 1.750 4.775 .188 21.207 31.588
20 6.350 .250 28.035 41.759
8.738 .344 38.231 56.946
11.125 .438 48.238 71.852
80 15.088 .594 64.429 95.969
12″ 324 12.750 4.775 .188 25.222 37.570
6.350 .250 33.375 49.713
7.925 .312 41.445 61.735
1.312 .406 53.525 79.727
14″ 356 14.000 4.775 .188 27.732 41.308
20 6.350 .250 36.713 54.685
7.925 .312 45.611 67.939
40 11.125 .438 63.441 94.498
16” 406 16.000 4.775 .188 21.748 47.290
10 6.350 .250 42.053 62.639
20 7.925 .312 52.275 77.866
11.125 .438 72.797 108.433
18″ 457 18.000 5.563 .219 41.588 61.948
7.137 .281 53.176 79.208
STD 9.525 .375 7.588 105.144
XHY 12.700 .500 93.450 139.198
20″ 508 2.000 6.350 .250 52.733 78.547
7.925 .312 65.604 97.719
11.125 .438 91.508 136.305
40 15.088 .594 123.110 183.378
17.475 .688 141.901 211.368
24″ 610 24.000 6.350 .250 63.413 94.456
7.925 .312 18.932 117.573
11.125 .438 11.219 164.176
15.875 .625 156.028 232.410
30″ 762 3.000 6.350 .250 79.433 118.318
10 7.925 .312 98.925 147.353
11.125 .438 138.286 205.983
30 15.875 .625 196.078 292.066
36″ 914 36.000 6.350 .250 95.453 142.180
10 7.925 .312 118.918 177.133
20 XHY 12.700 .500 198.570 282.372
42″ 1067 42.000 7.925 .312 138.911 206.914
XHY 12.700 .500 221.610 33.097
48″ 1219 48.000 STD 9.525 .375 19.738 284.112
XHY 12.700 .500 253.650 377.822
22.225 .875 44.383 655.969

For your project, purchase super duplex seamless pipe that is cut to size from the oldest importers in Dubai at a competitive price. For more information, see the advantages

What are the benefits of the super duplex pipes?

The super duplex pipe provides many benefits that include the following, among others.

  • High strength, thermal conductivity, heat conductivity, and energy absorption
  • Low coefficient of thermal expansion
  • Excellent resistance to erosion, corrosion fatigue, and stress corrosion cracking
  • High resistance crevice and pitting corrosion resistance
  • Good weldability, workability, and sulfide stress corrosion resistance
  • Pipes made of super duplex steel having the above top properties are best for making power energy FGD systems, heat exchangers, mechanical and structural components, etc.

Duplex and super duplex are part of the stainless steel family with higher corrosion resistance and strength. The highly demanding industrial applications involving high chlorine and temperature needed more potent stainless steel. The duplex was the second generation of stainless steel with added chromium, nickel, and molybodenum. Super duplex is the third generation with the same content but with increased quantity. Hence there are a few differences between the two, including the following among others.

Super duplex pipes are stronger, more expensive, and corrosion-resistant than duplex

There are over 3500 grades of steel to identify the composition for specific uses. Also, the many super duplex stainless steel pipe material grades depend on their chromium, nickel, and molybdenum composition. The prestigious standard organizations ASTM and ASME or SAE approve many of them for specific uses in many industries. They also support many grades for welded, seamless, erw etc.

The super duplex steel pipe grades include 2507 with a high chromium content of 28% and 4501duplex pipes. As per the grades, the duplex pipes find use in seawater systems, umbilicals, desalination plants, flue-gas cleaning, pressure vessels, tanks, and others.

Meet the most dynamic super duplex welded pipe distributors and traders with MTC, situated in the GCC. View the technique for cutting super duplex welded pipes.

Super duplex pipe though harder than pipe made of many other stainless steel grades, can be cut using specific methods. The high strength and elongation combination of super duplex steel makes breaking its chips difficult, as it will affect the surface finish negatively. Also, it is critical to cut it without affecting the mechanical strength and corrosion resistance properties.

So the best method to cut pipes made of the super duplex is laser cutting because it provides excellent tolerance and surface quality. Since laser has no problem with high strength, selective laser melting is fast emerging as the additive process to get near-net shape manufacturing solutions for super duplex steel pipes.

Look up super duplex round pipes manufactured by Jindal, ISMT, MSL, TISCO, Baosteel, JFE, and NSSMC and find the actual stockist and dealer in Dubai

The second-generation duplex steels evolved to SDSS or super duplex stainless steel. in the late 1960s. It has the same elements like chromium, nickel, and molybdenum but in higher quantities than duplex. Hence it has high strength and corrosion resistance than duplex. Many pipes a made of SDSS material are available in different sizes, shapes, wall thicknesses, and others.

The super duplex seamless pipe is one of them to be useful in many applications. Also, the super duplex welded pipes are the best in medical and other sectors. The top super duplex pipe suppliers offer many other pipes made of SDSS material at competitive costs.

View all other grades and their specialized manufacturers