Duplex Seamless Tube Manufacturer, Supplier, and Exporter in India

he Mcneil Instrument Duplex Steel Pipe derives its name from the dual nature inherent in the alloy’s microstructure. Mcneil Instrument’s Duplex Stainless Steel Seamless Pipe exhibits excellent mechanical properties and can be utilized in an as-welded state. Regarded as superior compared to austenitic alloys like ASTM A312 TP304 or ASTM A312 TP316, the Seamless Duplex Pipe offers significantly enhanced resistance to corrosion.

Mcneil Instrument offers Duplex Pipe in custom lengths and sizes, a feature particularly beneficial when exposed to corrosive environments containing compounds causing chloride stress corrosion and pitting corrosion. The Duplex Welded Pipe also boasts higher tensile strength properties compared to standard austenitic stainless steel grades. Primarily utilized in the offshore oil and gas industry, the lower nickel content in Duplex Pipe makes it cost-effective. As a leading distributor and manufacturer of A790 Duplex Pipe, Mcneil Instrument ensures the supply of high-quality products to its customers. For the Duplex Pipe Price List, please refer to our website.

Are you looking for Duplex Pipe manufacturers in India?

At Mcneil Instrument, we have been manufacturer, supplier, and exporter of Duplex Stainless Steel Seamless, welded, and ERW Pipes since 2008. Our production range starts from 4mm to 219mm in SMLS and 5mm to 1219.2mm in Welded pipes. Custom sizes are also available for quantities exceeding 10 Tons. Choosing Mcneil Instrument as your Duplex Stainless Steel Pipe manufacturer offers the advantage of a 10% lower price compared to stockists and suppliers in India, along with prime quality materials accompanied by Mill Test Certificates.

We also offer warranties on all our Duplex Steel Pipes & Tubes. While we are associated with various traders, stockholders, and distributors in India, for quantities exceeding 2 tons, direct contact with Mcneil Instrument’s Head Office in Mumbai, India can save you up to 10 – 15% in price while ensuring genuine Duplex Pipes materials. Make sure to compare our Duplex Seamless Pipe Price List, weight chart, sizes, and dimensions.

Duplex Stainless Steel Pipe sizes

Duplex Stainless Steel Seamless Pipe

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

Duplex Steel Welded Pipe

  • Size: 5.0 – 1219.2 mm
  • Thickness : 0.5 – 20mm
  • Length: Single, Double Random & Cut Length
ASTM A789 Steel Pipe Specification

For expedited delivery, explore Mcneil Instrument’s comprehensive inventory of Duplex Steel Heat Exchanger Tubes, Coiled Tubing, and Condenser tubes available in India. Stay updated with the latest online Price List while accessing a wide range of duplex pipe solutions from Mcneil Instrument.

 

Standard SpecificationASTM A790 ASME SA790, F51
Manufacturing TypeSeamless / ERW / Welded / Fabricated / CDW / CDS / DOM / CEW / 100% X Ray Welded
Thickness RangeSCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXH, SCH XXS, SCH XS
OriginEurope, USA, South Korea
StandardSUS, JIS, AISI, ASTM, GB, DIN, EN
Value Added Services
  • Cutting
  • Beveling
  • Threading
  • Destructive and Non Destructive
  • Ultrasonic Testing
  • Draw & Expansion as per required Size & Length
ENDPlain End, Beveled End, Treaded ASTM A790 DSS Pipe
Marking
  • Specification
  • Material Grade
  • Nominal Size
  • Schedule or Wall Thickness
  • Method of Manufacturing (Seamless / Welded)
  • Heat Number
  • Manufacturer / Supplier Name or Custom Logo – on request
Test Certificate
  • Third Party Inspection (TPI)
  • Moisture testing
  • Manufacturer Test Certificate
  • Fumigation Certificates
  • 100% Radiography Test Report
  • DFARS compliant
  • EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
  • Laboratory Test Certificate from Govt. Approved Lab
  • Raw Materials Certificate
  • HS Code Commercial Invoice
  • Heat Treatment Charts
  • Surface roughness measurement
  • Form A for Generalized System of Preferences (GSP)
PackagingPacked in PE Fabric Bundles or ply wooden box wrapped in plastic or Standard seaworthy export packing or as per customers’ request
PortMumbai, India
Why choose Oshwin?
  • Lowest price
  • Better price stability
  • Higher strength leading to weight saving
  • High corrosion resistance particularly stress corrosion cracking
Duplex stainless steel tube price in India
Duplex Stainless Steel*Price Start range per Kg ex Mumbai
Manufacturing TypeUSA FOB Price*Malaysia FOB Price*Europe FOB Price *Singapore FOB Price*
Seamless PipeUS $ 624.22 Malaysia Ringgit4.88 Euro7.94 Singapore Dollar
Seamless TubeUS $ 1144.41 Malaysia Ringgit8.95 Euro14.56 Singapore Dollar
Welded PipeUS $ 416.15 Malaysia Ringgit3.26 Euro5.29 Singapore Dollar
ASTM A790 DSS Pipe roughness
Outside surface roughnesInside surface roughness
RA 20 defect level max. 50 μmRA 20 defect level max. 20 μm
Duplex Stainless Pipe Chemical Composition
Material Composition % (Approx)
CrNiMoNMnWCu
2101 LDX21.51.50.30.225
DX2202232.50.30.21.5
RDN 903201.80.20.114.2
2304234.80.30.10
2205225.73.10.17
250725740.27
Zeron 1002573.20.250.70.7
Ferrinox
255/
Uranus 2507Cu
256.53.50.251.5

Numerous Duplex Pipe suppliers, importers, exporters, dealers, stockholders, and distributors source their materials from Mcneil Instrument and distribute them in their respective countries with increased profit margins. For the best prices in India, it is advisable to reach out to Mcneil Instrument directly and inquire about their price list.

Features & Benefits of Duplex Stainless Steel Pipe

Purchase directly from Mcneil Instrument, a leading manufacturer, supplier, and exporter of Duplex pipes, ensuring genuine materials, competitive pricing, and expedited global deliveries. Our products adhere to ASTM A790/ASTM A928 American specifications. Although more challenging to machine and form compared to austenitic materials, our Duplex pipes offer double the design strength of both austenitic and ferritic stainless steels. While weldable, thick materials require extra care during the welding process. With a maximum temperature limit of 300°C, our Duplex pipes exhibit superior toughness down to -80°C, although they are not suitable for cryogenic applications. Mcneil Instrument offers a diverse range of corrosion resistance options to suit various applications, making our Duplex pipes ideal for resisting stress corrosion cracking.

Stainless Steel Duplex Equivalent

Grades EN (WNR.) / UNS NoType
LDX 2101 Pipe1.4162/ S32101Lean
DX22021.4062/ S32202Lean
RDN 9031.4482/ S32001Lean
LDX 23041.4362/ S32304Lean
2205 Pipe1.4462/ S31803/ S32205Standard
2507 Pipe1.4410/ S32750Super Duplex
Zeron 100 Pipe1.4501/ S32760Super Duplex
Ferrinox 255/ Uranus 2507Cu Pipe1.4507/ S32520/ S32550Super Duplex
Ferralium 255 Pipe1.4501/ UNS S32760Super Duplex
Hyper1.4658/ S32707 / S33207HDSS

Duplex Pipe Schedule Chart

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

DSS Pipe Weight Chart
Outside Dia
mm
Wall Thk
mm
in.ScheduleKg/m
13.721.651/410S0.50
13.722.241/440S0.64
13.723.021/480S0.81
17.151.653/810S0.64
17.152.313/840S0.86
17.153.203/880S1.12
21.342.111/210S1.02
21.342.771/240S1.29
21.343.731/280S1.65
26.672.113/410S1.30
26.672.873/440S1.71
26.673.913/480S2.23
33.402.77110S2.13
33.403.38140S2.54
33.404.55180S3.29
33.406.352)11604.30
42.162.7710S2.73
42.163.5640S3.44
42.164.8580S4.53
42.166.352)1605.69
48.262.7710S3.16
48.263.6840S4.11
48.265.0880S5.49
60.332.77210S3.99
60.333.91240S5.52
60.335.54280S7.60
60.338.742)216011.29
73.033.0510S5.35
73.035.1640S8.77
73.037.0180S11.59
88.903.05310S6.56
88.905.49340S11.47
88.907.62380S15.51
88.9011.132)316021.67
101.603.0510S7.53
101.605.7440S13.78
101.608.0880S18.92
114.303.05410S8.50
114.306.02440S16.32
114.308.56480S22.67
114.3013.492)416034.05
141.306.55540S22.10
141.309.53580S31.44
141.3015.882)516049.87
168.283.4610S14.04
168.287.11640S28.69
168.2810.97680S43.21
168.2814.27612054.75
168.2818.262)616068.59
219.088.18840S43.20
219.0812.7880S65.63
219.0818.23812091.30
219.0823.012)8160112.97