Super Duplex Stainless Steel Pipe and Pipe Fittings

super duplex stainless steel pipes and pipe fittings hero

Super duplex stainless steel pipes and pipe fittings are highly durable and resistant to corrosion, making them an ideal choice for use in harsh environments. At Om Steel, we offer a wide range of super duplex stainless steel pipes and pipe fittings that are designed to meet the unique needs of our clients.

Super duplex stainless steel pipes and pipe fittings are made up of a combination of austenitic and ferritic stainless steel, which provides them with exceptional strength and resistance to corrosion. These pipes have higher chromium, molybdenum, and nitrogen content than standard duplex stainless steel pipes, which provides them with superior corrosion resistance and higher strength.

At Om Steel, we offer various grades of super duplex stainless steel pipes and pipe fittings, including S32750, S32760, S32550, and others. These grades have different properties and are used in various applications based on their strength, corrosion resistance, and other factors. For instance, S32750 is a high-strength grade that is commonly used in oil and gas industry applications, while S32760 is a super duplex grade with excellent corrosion resistance that is often used in marine and chemical processing industries.

Super duplex stainless steel pipes and pipe fittings also offer excellent heat resistance, making them suitable for high-temperature applications. They are highly versatile and can be used in various industrial applications, including oil and gas, chemical processing, and desalination. Om Steel is a trusted manufacturer of high-quality super duplex stainless steel pipes and pipe fittings that offer exceptional features such as high strength, superior corrosion resistance, and heat resistance.

ASTM A Steel Pipe Specifications for Super Duplex Stainless Steel Pipes

ASTM A312 is the most commonly used specification. This standard covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steels intended for high-temperature and general corrosive service.

Austenitic stainless steels are known for their excellent corrosion resistance and high-temperature strength. They contain a minimum of 16% chromium and 6% nickel, along with other elements such as molybdenum and nitrogen. These alloys are non-magnetic in the annealed condition but can become slightly magnetic after cold working.

ASTM A312 Specification

The ASTM A312 specification covers a wide range of austenitic grades, including TP304/304L, TP316/316L, TP321/321H, TP347/347H, and many others. The “TP” prefix stands for “Type,” followed by a number that indicates the nominal composition of the alloy.

The standard also specifies various dimensions such as nominal pipe size (NPS), outside diameter (OD), wall thickness (WT), and length. For example, NPS 1/2 through NPS 24 has an OD equivalent to the nominal size in inches (i.e., NPS 1/2 has an OD of 0.84 inches). The WT is specified either in Schedule or Sch; for instance, Sch 10S has a wall thickness of 0.109 inches.

ASME B36.19M Standard

Another standard that complements ASTM A312 is ASME B36.19M, which covers the dimensions and tolerances of stainless steel pipes. This standard specifies various types of end finishes, such as plain ends, beveled ends, threaded ends, and grooved ends.

The standard also provides guidelines for marking and identification of pipes, including size, schedule, material grade, heat number, and manufacturer’s name or trademark.

A106 Gr.B vs. ASTM A312

While ASTM A312 is the most common specification for super duplex stainless steel pipes, other standards can also apply depending on the specific application requirements. For instance, A106 Gr.B is a carbon steel pipe specification widely used in low-pressure applications such as water wells and gas lines. A106 Gr.B has different chemical composition requirements than austenitic stainless steels and lower corrosion resistance but can be more cost-effective in certain cases.

Types of Super Duplex Fittings

Buttweld Fittings

Buttweld fittings are one of the most common types of super duplex fittings used in pipelines. These fittings are welded directly onto the pipe using a butt welding process. Buttweld fittings come in various shapes such as elbows, tees, reducers, caps, and stub ends. They are available in different sizes ranging from 1/2 inch to 48 inches.

Threaded Fittings

Threaded fittings are another type of super duplex fitting that is widely used in industrial applications. These fittings have threads on their interior or exterior surface that allow them to be screwed onto pipes or other components without welding. Threaded fittings come in various shapes such as elbows, tees, couplings, unions, plugs, and bushings.

Socket Weld Fittings

Socket weld fittings are similar to buttweld fittings but have a socket at one end instead of being straight like buttwelds. The socket allows for easier insertion into pipes or other components before welding takes place. Socket weld fittings come in various shapes such as elbows, tees, couplings, unions and reducing inserts.

Flanges

Flanges are used to connect pipes or valves together with bolts and nuts forming a tight seal between two surfaces when tightened against each other with gaskets between them.. Flanges can be classified into several types based on their design such as slip-on flange (SO), weld neck flange (WN), blind flange (BL), lap joint flange (LJ), socket weld flange (SW), and threaded flange.

Super Duplex Stainless Steel Pipes and Pipe Fittings Specifications

Standard SpecificationASME, ASTM, AISI, AMS, JIS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB
Super Duplex Seamless Pipe Size"OD: 4 to 219mm Wall Thickness: 0.5 to 20mm"
2507 Duplex Stainless Steel Welded Pipe SizeOD: 5.0 - 1219.2 mm
Super Duplex 2507 EFW Pipe SizeOD: 5.0 - 1219.2 mm
Super Duplex Stainless Steel Pipe WTSCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
25cr Super Duplex 2507 Pipe manufacturing techniquesSeamless / ERW / EFW/ Welded / Fabricated / CDW/ LSAW/ Seam-Welded / Redrawn
Origin of Duplex 2507 Stainless Steel pipe materialIndian, European, Korean, Japanese
2507 Duplex SS 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"
FormRound, Square, Rectangular
Super Duplex Alloy 2507 Pipe LengthSingle Random, Double Random & Required Length End: Plain End, Beveled End, Treaded
2507 Super Duplex Stainless Steel Pipe Delivery ConditionAnnealed and Pickled, Hot Finished, Polished, Bright Annealed, Cold Drawn

Super Duplex Stainless Steel Pipe fittings Specification

Standard Specification :Super Duplex Fittings
Coating Fitting Faces :Cold and Hot Dip Galvanized, Zinc Plated, Yellow Transparent, Oil Black Paint, Anti-rust Paint
Thickness:View Our Thickness: Schedule 5S, SCH10, SCH20, SCH10, SCH20, SCH30, SCHTD, SCH40, SCH60, XS, SCH80, SCH100, SCH120, SCH140, SCH160.
Rating Pressure:Pressure Rating Of: 3000 LBS, 6000 LBS, 9000 LBS
Check Sizes:"(SMLS UPTO 24”) 1/2” TO 36” (Buttweld 8” TO 36” )"
Standard:MSS-SP-43 Type B Fittings, ANSI B16.28 Fittings, JIS B2312 Fittings, JIS B2313 Fittings, ANSI B16.9 Fittings, MSS-SP-43 Type A Fittings, MSS-SP-43 Type b Fittings
Dimensions Class:2000#, 3000#, 6000#, 9000#
Application:"Chemical Industry
Water Pipeline Industry
Nuclear Power Plant
Natural Gas Industry
Fabrication Industry
Oil And Gas Industry"
Fitting Machining Equipment:Press machine, electric bevelling machine, Bending machine, Pushing Machine, Sand-blasting machine etc

Sizes of ASTM A815 UNS S32750 Fittings

SeamlessWelded
ElbowsUpto 24"Upto 42"
TeesUpto 24"Upto 36"
ReducersUpto 24"Upto 48"
End CapsUpto 24"-
Return BendsUpto 8"-
CrossUpto 8"Upto 36"
Swage NippleUpto 4"-
Special Fittings: Piggable Bends, 3D, 5D, 10D etc. Customized Bends, Miter BendsAs per customer drawings and datasheets-
ThicknessSch 5, Sch 5s, Sch 10, Sch 10s, Sch 20, Sch 30, Sch 40s, Sch 40, Sch STD, Sch 60, Sch 80s, Sch 100, Sch 120, Sch XS, Sch XXS, Sch 160, upto 50mm in case of welded fittings-

Range of Super Duplex Stainless Steel Pipe and Pipe Fittings Material

Super Duplex Alloy 2507 Round Pipes25cr Super Duplex 2507 Fabricated Pipes
Super Duplex Grade 2507 Square PipesSuper Duplex Saf 2507 Schedule 5S Pipes
Duplex Steel 2507 Schedule 40 PipesWelded 2507 Super Duplex Stainless Steel Cold Drawn Pipes
Seamless Super Duplex Grade 2507 PipesDuplex Steel 2507 Welded Pipes
Super Duplex Saf 2507 ERW PipesASTM A790 UNS S32760 2507 EFW Pipes
Duplex 2507 Stainless Steel Custom Pipes2507 Duplex SS Beveled End Pipes
Super Duplex Saf 2507 Polished PipesSuper Duplex Exhaust Pipes
ASTM A790 UNS S32760 2507 Capillary PipesSmall diameter 2507 Duplex Stainless Steel pipes
Super Duplex SS 2507 Clad PipesSuper Duplex 2507 Annealed pipes
Cold Drawn Super Duplex 2507 PipesASTM A790 UNS S32750 Alloy 2507 Seam Welded Pipes
Super Duplex Stainless Steel Overlay Pipes25cr Super Duplex 2507 Bush Hex Pipes
Thick Wall Duplex 2507 Stainless Steel PipesThin Wall 2507 Duplex SS Pipes
2507 Super Duplex SS Rectangle PipesCold Drawn ASTM A790 UNS S32750 Alloy 2507 Seamless Pipes

25cr Super Duplex 2507 Pipe Modulus Temperature

GERMAN VDTÜVASME BPVC
2507250°C/ 482°F316°C/ 600°F
2205280°C/ 536°F316°C/ 600°F
0.036"0.109"1"
0.04"0.125"1.125"
0.05"0.16"1.25"
0.063"0.19"1.5"
0.071"0.25"1.75"
0.08"0.3125"2"
0.09"0.375"2.5"
0.095"0.5"3"
0.1"0.625"-

Super Duplex Stainless Steel Pipe Tolerances

ODWALLLENGTHS
"<1-1/2"" (38.1 mm) ±0.005"" (0.13 mm)<br 1-1/2"" (38.1 mm) to 3"" (76.2 mm) ±0.010"" (0.25 mm)
3-1/2"" (88.9 mm) to 4"" (101.6 mm)
±0.015"" (0.38 mm)"		±10%"Randoms up to +2"" (50.8 mm)
Cuts +1/8"" (3 mm) -0""
Coils to 80,000' (24,384 m)"
±0.005" (0.127 mm)±10%Coils to 80,000' (24,384 m)

Super Duplex Alloy 2507 Pipe Schedule and Wall Thickness

NOMINALO.D. INCHES10S1040S & STD4080S & E.H.80160
1/80.4050.0490.0490.0680.0680.0950.095-
1/40.540.0650.0650.0880.0880.1190.119-
3/80.6750.0650.0650.0910.0910.1260.126-
1/20.840.0830.0830.1090.1090.1470.1470.187
3/41.050.0830.0830.1130.1130.1540.1540.218
11.3150.1090.1090.1330.1330.1790.1790.25
1 1/41.660.1090.1090.140.140.1910.1910.25
1 1/21.90.1090.1090.1450.1450.20.20.281
22.3750.1090.1090.1540.1540.2180.2180.343
2 1/22.8750.120.120.2030.2030.2760.2760.375
33.50.120.120.2160.2160.30.30.437
3 1/240.120.120.2260.2260.3180.318-
44.50.120.120.2370.2370.3370.3370.531
4 1/25--0.247-0.355-
55.5630.1340.1340.2580.2580.3750.3750.625
66.6250.1340.1340.280.280.4320.4320.718
77.625--0.301-0.5-
88.6250.1480.1480.3220.3220.50.50.906
99.625--0.342-0.5--
1010.750.1650.1650.3650.3650.50.5931.125
1111.75--0.375-0.5--
1212.750.180.180.3750.4060.50.6871.312
14140.1880.250.3750.4370.50.751.406
16160.1880.250.3750.50.50.8431.593
18180.1880.250.3750.5620.50.9371.781

Super Duplex Stainless Steel Seamless Pipes Weight Chart

"PIPE OD MM""PIPE WT MM"NOMINAL SIZEWEIGHT, KG/M
21.342.111/2" 10S1.02
21.342.771/2" 40S1.29
26.672.113/4" 10S1.3
26.672.873/4" 40S1.71
33.41.651" 5S1.31
33.42.771" 10S2.13
33.43.381" 40S2.54
42.161.651 1/4" 5S1.67
42.162.771 1/4" 10S2.73
42.163.561 1/4" 40s3.44
48.261.651 1/2" 5S1.92
48.262.771 1/2" 10S3.16
48.263.681 1/2" 40S5.49
60.331.652" 5S2.42
60.332.772" 10S3.99
60.333.912" 40S5.52
733.052 1/2" 10s5.35
735.162 1/2" 40S8.77
88.92.113" 5S4.58
88.93.053" 10S6.56
88.95.493" 40S11.47
101.63.053 1/2" 10s7.53
114.32.114" 5S5.93
114.33.054" 10S8.5
114.36.024" 40S16.32
141.33.45" 10S11.74
141.36.555" 40S22.1
168.32.776" 5S11.48
168.33.46" 10S14.04
168.37.116" 40S28.69
219.12.778" 5S15
219.13.768" 10S20.27
219.18.188" 40S43.2
2733.410" 5S22.95
2734.1910" 10S28.2
2739.2710" 40S61.22
323.93.9612" 5S31.72
323.94.5712" 10S36.54
323.99.5312" 40S75.02
355.64.7814" 10S41.99
355.69.5314" STD82.583
406.49.5316" STD94.706
406.44.7816" 10S48.07
457.24.7818" 10S54.151
5085.5420" 10S69.702
6106.35*24" 10S95.919

Super Duplex Stainless Steel Pipe Fittings Dimension chart

NPSAll FittingsAll FittingsElbow And Tee180 Degree Return Bends180 Degree Return Bends180 Degree Return BendsREDUCERSCAPS
Normal Pipe SizeO.D. at Bevel (1), (2)"I.D. at End (1), (3), (4)"Center -to- End Dimension A, B, C, MCenter-to- Centre OBack-to- Face KAlignment of Ends UOverall Length HOverall Length E
½ to 2½"0.06 -0.03"0.030.060.250.250.030.060.12
3 to 3 ½0.060.060.060.250.250.030.060.12
40.060.060.060.250.250.030.060.12
5 to 8"0.09 -0.06"0.060.060.250.250.030.060.25
10 to 18"0.16 -0.12"0.120.090.380.250.060.090.25
20 to 24"0.25 -0.19"0.190.090.380.250.060.090.25
26 to 30"0.25 -0.19"0.190.12---0.190.38
32 to 48"0.25 -0.19"0.190.19---0.190.38

Super Duplex Grade 2507 Pipe Pressure Rating

PIPE GRADEASTM/ UNS"100°F 40°C""200°F 90°C""300°F 150°C""400°F 200°C""500°F 260°C""600°F 320°C""700°F 370°C"
LDX 2304 Pipe*1)S323042927.926.124.722.919.2-
Duplex 2205 Pipe*2)S31803303028.927.827.226.9-
Duplex 2507 Pipe*3)S3275038.736.334.83433.933.9-
Sanicro® Pipe 60N06625404039.639.238.637.837
Sanicro® 70:1*4)N06600:116.716.716.716.716.716.716.7
Sanicro® 70:2*5)N06600:220202020202020
Sanicro® 70:3*6)N06600:323.323.323.323.323.323.323.3
Sanicro® 30 CF*7)N08800 CF20202020202020
Sanicro® 30 HF*8)N08800 HF16.716.716.716.716.716.716.7
2RK65™*9)N0890420.316.715.113.812.711.911.4
Sanicro® 28 Pipe *10)N0802820.718.917.716.515.414.413.6
254 SMO Pipe*11)S3125426.926.921.419.818.617.917.4

Super Duplex Saf 2507 Seamless Pipe Chemical Composition

GRADESUPER DUPLEX 2507
Carbon (C) Max.0.03
Manganese (Mn) Max.1.2
Phosphorous (P) Max.0.035
Sulphur (S) Max.0.02
Silicon (Si) Max.0.8
Chromium (Cr)24.0–26.0
Nickel (Ni)6.0–8.0
Molybdenum (Mo)3.0–5.0
Nitrogen (N)0.24–0.32
Iron (Fe)Bal.
Copper (Cu)0.5
Other Elements-

Super Duplex Pipe and Pipe Fittings Chemical Composition Chart

GradeCMnSiPSCrMoNiNFe
S327500.030 max2.00 max1.00 max0.030 max0.020 max22.0 – 23.03.0 – 3.54.50 – 6.500.14 – 0.2063.72 min

Mechanical Analysis of ASTM A815 UNS S32750 Pipe Fitting

GradesDensity (g/cm 3)Density (lb/in 3)Melting Point (°C)Melting Point (°F)
S327507.8050.2851420 – 14652588 – 2669

Equivalent material of Super Duplex Pipe Fittings

STANDARDWERKSTOFF NR.UNS
Super Duplex 25071.441S32750 / S32760

Industrial Application of Super Duplex Stainless Steel Pipes and Pipe Fittings

Defence & Aerospace

Defence & Aerospace

We are one of the leading supplier, stockist, exporter and trader of wide range of industrial materials and sourcing globally to our customers.

Oil/Gas

Oil/Gas

We are one of the leading supplier, stockist, exporter and trader of wide range of industrial materials and sourcing globally to our customers.

Speciality Valves & Vacuum

Speciality Valves & Vacuum

We are one of the leading supplier, stockist, exporter and trader of wide range of industrial materials and sourcing globally to our customers.

Precision Components

Precision Components

We are one of the leading supplier, stockist, exporter and trader of wide range of industrial materials and sourcing globally to our customers.

Request A Quote

Complete control over products allows us to ensure our customers receive the best quality prices and service. We take great pride in everything that we do in our factory.

FAQ

What are super duplex stainless steel pipes and pipe fittings used for?

Super duplex stainless steel pipes and pipe fittings are used in a wide range of applications, including oil and gas exploration and production, chemical processing, marine engineering, and other high-corrosion environments. They are often used in applications that require high strength, durability, and resistance to corrosion.

What are the benefits of using super duplex stainless steel pipes and pipe fittings?

Super duplex stainless steel pipes and pipe fittings offer several benefits over other types of pipes and fittings, including their high strength, durability, and resistance to corrosion. They are also highly customizable, allowing for specific application requirements to be met. Know more

What are some popular grades of super duplex stainless steel used for pipes and fittings?

There are several grades of super duplex stainless steel used for pipes and fittings, including UNS S32750 and UNS S32760. These grades offer excellent resistance to corrosion and high strength.Know more

What is the manufacturing process for super duplex stainless steel pipes and fittings?

Super duplex stainless steel pipes and fittings are typically manufactured using a process called hot forming, which involves heating the material and then forming it into the desired shape using a hydraulic press or other forming equipment. The manufacturing process can also involve additional heat treatments or surface finishing processes to further enhance the properties of the super duplex stainless steel.

Om Steel logo

Om Steel Industries, established in the year 2002, an ISO 9001-2015 certified Firm. Since its inception in 2002, Om Steel is driven by a steadfast inspiration: to give the best value for money to clients by upholding the highest standards of quality and customer service.

Company

Products

  • Pipes and Tubes
  • Sheets, Plates & Coils
  • Round Bars & Rods
  • Flats
  • Pipe Fittings
  • Forged Fittings
  • Valves

Materials

Head Office

Plot No. 24c, Gat No. 728c, Jayavant Estate, Near Velu Phata, Tal - Bhor, Pune 412212

Tel.: +91 9325404015

Tel.: +91 8888851856

Mail: omsteel@omsteel.com

Workshop

Plot No. 24c, Gat No. 728c, Jayavant Estate, Near Velu Phata, Tal - Bhor, Pune 412212

Tel.: +91 8888851856

©2024. Om Steel Industries. All Rights Reserved.

Sorted Marketing Agency Logo