Duplex Steel Seamless Tube

With in-house quality testing and certification, you can count on quality materials delivered with proper documentation.

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Duplex Steel Seamless Tube Manufacturer.

SEAMLESS: ASTM A789 Seamless Tube | ASME SA789 Seamless Tube | 1/2″ SCH 40 Duplex Steel Seamless Tubes

Duplex Steel Seamless Tube Manufacturer

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MPJ Tubing Solutions LLP, a prominent player in the world of stainless steel manufacturing, excels in the production of Duplex Steel Seamless Tubes. These tubes adhere to the highest industry standards, including ASTM A789, and underscore the company’s dedication to quality and precision.

Duplex steel is renowned for its exceptional combination of properties, which include high strength, corrosion resistance, and the ability to withstand challenging environments. These attributes make it the material of choice for a wide range of industries, including oil and gas, chemical processing, and desalination plants.

The ASTM A789 Duplex Steel Seamless Tubes produced by MPJ Tubing Solutions LLP are a testament to their commitment to delivering top-tier products. With outer diameters ranging from 6.00 mm to 101.40 mm and wall thicknesses spanning from 0.70 mm to 8.00 mm, these tubes offer versatility to meet diverse project requirements. Whether it’s a small-scale application or an extensive industrial project, these tubes can be tailored to suit specific needs.

The advantage of being able to select lengths of up to 24 meters should not be underestimated. Longer tube lengths not only simplify installation but also reduce the need for joints, enhancing the overall reliability and durability of the tubing systems.

MPJ Tubing Solutions LLP has earned a solid reputation in the industry for manufacturing Duplex Steel SMLS Tubes that are engineered to perfection. Their commitment to international standards, including ASTM, ASME, DIN EN, NF, and JIS, ensures that customers receive products of the highest quality. These tubes, with their remarkable properties and exceptional dimensional flexibility, are a testament to MPJ Tubing Solutions LLP’s dedication to manufacturing excellence in the field of stainless steel products.

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Duplex Steel Seamless Tubes Standard Specifications

Spec. No.




Standard Specification for Seamless and Welded Ferritic/Austenitic Duplex Steel Tubing for General Service.

ASTM A789 /A789M Covers Grades of nominal wall thickness, Duplex Steel Tubing for services requiring general corrosion resistance.

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Size Range
  • Outer Diameter: 6.00 mm to 101.40 mm
  • Wall Thickness: 0.70 mm to 8.00 mm
  • Length: Upto 24 Meter
  • Specifications: ASTM, ASME, DIN EN (GERMAN), NF (AFNOR), JIS (JAPAN)
Supply Condition
  • Bright Annealed / Solution Annealed & Passivated
  • Ability to supply tubes with stringent NDT Testing, Special Chemistry, Lower Residual Stress values.
  • OD Polishing : Grit Polish from 120 to 600.
  • Closer Dimensional Tolerance & higher Corrosion Resistance etc.
  • We offer customized cut Length to save time of our customers.
Duplex Steel Seamless Tube Quality Control

To ensure a quality product, MPJ is holding certificate ISO 9001:2015, ISO 45001, OHSAS 14001, & CE-PED. We are also members of various renowned agencies and Chambers of Commerce including MASSMA, EEPC, FICCI, FIEO, Indian Merchants Chamber, etc. With state-of-the-art manufacturing processes, contemporary technologies, and proficient services, we consider: offering the finest quality, best in class products. Compliance with specifications as per standards, Outer Diameter, Thickness, Inside Diameter, Inside Finish, Marking, Ends, and Finishing. This ensures that we never face a rejection of the Duplex Steel Seamless Tube supplied.

Brand –

Duplex Steel Seamless Tubing are marked in requirement of the international standards.

This marking helps for the identification of the tube and supported with the Material Test Report. It is 100% traceable to our mill.

Duplex Steel SMLS Tubes Packing & Documentation

Duplex Steel SMLS Tubes Packing & Documentation

ASTM A789 Duplex Steel Seamless Tubes are surface wash and clean to remove all impurities and stock in the warehouse. Then it is wrapped in thin plastic and also it ends are protected by plastic caps to avoid any damage in transit. Duplex Steel Seamless Tube is bundled in bubble wrap followed by assorting them in colored plastic bundles. An outer rope is tied to protect the tubing and they are packed in wooden box or container.

MPJ Provide Duplex Steel Seamless Tube with all necessary documents such as commercial invoice, packing list, Test Reports, HS Code, Country of Origin attested by the chamber of commerce, Fumigation Certificate, Warranty Letter, and Base Material Certificates. Every lot is supplied with a material test certificate as per EN 10204 NACE 3.1 standards indicating the chemical and mechanical properties of the Duplex Steel Seamless Tubes.

We also confirm the guarantee of the Duplex Seamless Tubes supplied as per Purchase order specifications and attest the same in the Material Test Certificate. We also welcome any third party inspection from an agency nominated by the customer to comply with NACE 3.2 Certification if required by the customer at an extra cost.

Duplex Steel Seamless Tube Application Industries

  • Oil & Gas Exploration
  • Petrochemicals and Refineries
  • Cross Country Pipe Line for Gas & Water
  • Pipes for Engineering purpose
  • Thermal, Nuclear and Solar Power Plants
  • Desalination Plants
  • Chemical Industries
  • Aerospace
  • Atomic Energy
  • Pharmaceutical
  • Food and Dairy
  • Automobile
Chemical Industries
Chemical Industries
Cross Country Pipe Line for Gas and Water
Cross Country Pipe Line
Oil and Gas Exploration
Oil and Gas Exploration
Petrochemicals and Refineries
Petrochemicals and Refineries
Thermal, Nuclear and Solar Power Plants
Thermal, Nuclear and Solar Power Plants

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