Super Duplex Steel UNS S32760 Pipes Manufacturer & Supplier

Super Duplex Steel UNS S32760 is a premium-grade stainless steel alloy designed for harsh, corrosive environments. With a balanced austenitic–ferritic structure, it offers high strength and exceptional resistance to chloride stress corrosion, pitting, and crevice attack. It functions effectively in challenging environmental conditions, including seawater systems, offshore structures, and aggressive chemical plants. These pipes come in seamless and welded forms and are manufactured according to the ASTM A790 specifications. Midland Alloys Inc. is a trusted manufacturer of Super Duplex S32760 pipes. Being the leading supplier of UNS S32760 pipes in India, we ensure that each order satisfies strict quality standards by providing comprehensive documentation and test certification. We are a known supplier of ASTM A790 S32760 pipes, and your go-to supplier for 1.4501 super duplex stainless steel pipes.

Super Duplex Steel UNS S32760 Pipes

What Is Super Duplex Stainless Steel UNS S32760?

UNS S32760 is a super duplex stainless steel with a dual-phase (ferritic-austenitic) microstructure, offering a strong combination of high strength and excellent corrosion resistance. It is specifically designed for harsh environments, especially those with chloride-rich seawater and high-pressure conditions. With around 25% chromium, along with molybdenum, nickel, nitrogen, and trace amounts of copper and tungsten, this alloy resists pitting, crevice corrosion, and erosion fatigue. Commonly known as Zeron® 100 or Super Duplex Stainless Steel 1.4501, it is widely used in marine, offshore, and chemical industries and is standardized under ASTM A790 / ASME SA790 for pipe manufacturing. UNS S32760 is a reliable super duplex alloy for seawater and other hostile applications.

Specification Super Duplex Steel UNS S32760 Pipes

Key Advantages of UNS S32760 Pipes

UNS S32760 is a super duplex alloy that contains a special 50/50 ferrite-austenite balance. It was designed to meet the requirements of sour service applications, chloride-heavy systems, and offshore oil and gas.
Its high chromium, molybdenum, and nickel content, along with copper and tungsten, provide exceptional resistance to both general and localized corrosion.

Here are the key advantages:

  • High Strength and Toughness:
    The dual-phase structure provides higher mechanical strength than austenitic or ferritic grades, saving on the requirement for thicker pipe walls.
  • Exceptional Corrosion Resistance:
    Strict metallurgical and dimensional requirements are met by these pipes, ensuring excellent performance under demanding conditions.
  • Chemical Composition of Super Duplex UNS S32760
    The chemical composition of UNS S32760 includes elevated molybdenum along with trace amounts of nitrogen and nickel, that enhance its corrosion environment.
  • Excellent Erosion and Wear Resistance:
    Additions of tungsten and copper improve its ability to withstand erosion in high-velocity fluid systems.
  • Good Weldability and Fabrication Characteristics:
    The material is suitable for welding and forming without compromising strength or corrosion resistance, especially when proper procedures are followed.
  • Thermal Stability Across Wide Temperature Ranges:
    UNS S32760 is appropriate for cryogenic and moderately high-temperature conditions due to its consistent performance between -50°C and +300°C.
  • Low Thermal Expansion:
    Its stable thermal expansion  rate provides dimension stability under changing temperatures, minimizing stress and deformation risk.
  • Compliant with International Standards:
    It meets ASTM A790 and ASME SA790 requirements, ensuring compatibility, quality, and safety in international projects.
  • Versatile Product Forms Available:
    Available in seamless, welded, or U-bent pipe form, the alloy is suitable to different engineering designs and fabrication requirements.
UNS S32760 pipes are trusted worldwide for their superior performance in demanding and corrosive environments, offering a long-lasting and cost-effective solution for critical infrastructure.

S32760 vs S32750 / S32205 – Grade Comparison

S32205, S32750 and S32760 are all part of the duplex stainless steel category, it varies in performance and composition. S32205 (Duplex 2205) is a standard duplex grade with excellent  corrosion resistance and overall strength. S32750 and S32760 are super duplex grades that offers superior properties for more demanding applications. The comparison between S32760 and S32205 is based on the corrosion resistance, and the alloy content . S32760 contains more tungsten and copper that enhances its resistance to crevice corrosion, and pitting, particularly in seawater and sour gas environments. S32760 is slightly more resistant compared to S32750 due to these additives. Select S32205 under moderate conditions and opt for S32760 in harsh environments which requires the maximun protection.

Technical Specifications of ASTM A790 S32760 Pipes

ASTM A790 S32760 pipes meet international standards of quality for super duplex pipe products. These pipes meet strict dimensional and metallurgical criteria, ensuring high performance in demanding conditions.
Finish
Sizes in Stock

Seamless Pipe OD : ½″ NB – 16″ NB
Welded Pipe OD : ½″ NB – 24″ NB
EFW Pipe Size : 6″ NB – 24″ NB

ASTM Standard
Standard

ASTM A790 ASME SA790

Process
Manufacturing Process

Seamless, ERW, Welded, Fabricated

Form
Form

Round, Square, Rectangular, Hydraulic Etc

Length
Length

Single Random, Double Random & Cut Length.

End Icon
End

Plain End, Beveled End, Treaded

Schedule
Schedule

SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, SCH 80S, SCH60, SCH80, SCH120, SCH140, SCH160, SCH XXS, SCH XS

Finish
Surface Finish

No. 2B – Mill finish / Matte finish, No. 4 – Brushed finish, No. 8 – Mirror finish, Bright Annealed – Smooth / Slightly reflective, Polished – Smooth / Enhanced corrosion resistance,Mirror – Highly reflective,

Types & Forms of UNS S32760 Pipes

UNS S32760 pipes are available in different types and forms to meet specific system designs and operating conditions. This range ensures flexibility in fabrication, layout and performance. These ranges ensure flexibility in the fabrication, layout and performance.

Manufacturing Types

  • Seamless Pipe
    Seamless Pipe

    Extruded or cold pilgered, no welding is required

  • Welded Pipe
    Welded Pipe

    Welded longitudinally from plates

  • ERW S32760 Pipe
    ERW S32760 Pipe

    Electric resistance welded from coils

  • EFW Super Duplex Pipe
    EFW Super Duplex Pipe

    Electric fusion welded for high-diameter applications

Pipe Forms

  • Round Pipe
    Round Pipe

    Most used shape, easy to install and fabricate

  • Square Pipe
    Square Pipe

    Used when aesthetic alignment or box sections are required

  • Rectangular Pipe
    Rectangular Pipe

    Used for flat or compact piping configurations

  • Hydraulic Pipe
    Hydraulic Pipe

    Accurate pipes for hydraulic and pneumatic systems

Contact Midland Alloys Inc. for Your Super Duplex UNS S32760 Steel Pipes Needs

Contact us today to discuss how Super Duplex UNS S32760 Steel Pipes can benefit your application. Whether you need guidance in selecting the right pipes or have specific requirements, our team of experts is here to help you find the optimal solution.

Technical Details & Delivery Condition

The chemical makeup of UNS S32760 includes high chromium and molybdenum levels, with nitrogen, nickel and trace elements, that improve its corrosion profile.

ElementsCCrCuFeMoMnNNiPSSiW
Minimum24.00.50Remainder3.00.206.000.50
Maximum0.03026.001.004.01.00.308.000.0300.0101.001.00

The mechanical properties of the alloy are high yield strength and tensile strength, as well as excellent toughness and elongation.

PropertyValue
0.2% Proof Stress (N/mm²) [ksi] Minimum550 [79.8]
Ultimate Tensile Strength (N/mm²) [ksi] Minimum750 [108.8]
Elongation (%) Minimum25
Hardness (HBN)270 max
Reduction of Cross Section Area (%) Minimum45
Charpy V-notch Impact at Ambient Temp (J) [ft.lb]80 min [59 min]
Charpy V-notch Impact at -46°C (J) [ft.lb]45 av, 35 min [33 av, 25.8 min]
Alloy UNS Designation Werkstoff NR.
2507 S32760 1.4501

Duplex & Super Duplex Steel Pipes Grades We Offer

Manufacturing Process of Super Duplex S32760 Pipes

S32760 pipes are manufactured through both seamless and welded processes. Seamless pipes use hot extrusion or cold pilgering from solid billets. Welded pipes are made by forming duplex plates or coils and it is welded using TIG, ERW or EFW techniques. After forming, solution annealing is applied to restore corrosion resistance. Final step involve straightening, cutting and hydrotesting for pressure tightness.
Round Bar

Round Bar

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Analytic

Analytic

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Cut to Length

Cut to Length

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Centering

Centering

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Heating

Heating

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Perforation

Perforation

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Inspection of Size

Inspection of Size

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Pickling

Pickling

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Inspection of Surface

Inspection of Surface

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Lubricating

Lubricating

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Cold Drawing (Cold Rolling)

Cold Drawing (Cold Rolling)

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Degreasing

Degreasing

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Annealing

Annealing

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Straightening

Straightening

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Cut

Cut

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Pickling / Passivating

Pickling / Passivating

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Inspection

Inspection

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Analytic

Analytic

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Marking

Marking

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Packing & Shipping

Packing & Shipping

Applications of Super Duplex Steel UNS S32760 Pipes

UNS S32760 pipes are selected for application in aggressive, corrosive, and high-pressure conditions. As they are used for crucial applications in industries like offshore oil & gas, marine, desalination, chemical processing, petrochemicals, power generation and pulp & paper. The common applications include heat exchangers, seawater cooling systems, risers, flowlines, fire-fighting lines, and pressure vessels. The material performs reliably where high mechanical loads and corrosion resistance are equally important.

Surface Finishes & Customization Options for S32760 Pipes

Midland Alloys keeps a large inventory of S32760 pipes in various diameters, thicknesses and forms to meet urgent project timelines. Each pipe is wrapped in HDPE wrap, plastic-capped ends, and wooden crates for safe delivery. We provide export services in UAE, Qatar, Saudi Arabia, Europe, and Southeast Asia with cut-to-length supply support and special-sized orders.

Packaging, Ready Stock & Export Support for S32760 Pipes

As a trusted super duplex 2507 pipe stockist, we keep ready stock UNS S32750 pipes in popular sizes to meet urgent project requirements. All pipes are packed using export-safe methods, such as wooden crates, bubble wrap, HDPE sleeves, or PVC-capped ends, depending on the customer’s preference. We guarantee fast shipping, support bulk orders, and provide custom packaging with pipe tags and Mill Test Certificates included. Our team regularly ships to the UAE, Saudi Arabia, Oman, Malaysia, Singapore, South Africa, Germany, and the UK. Every export follows proper clearance rules. We handle logistics—covering documentation, port delivery, and options like FOB or CIF as required.

Why Choose Midland Alloys Inc. as your super duplex S32760 pipe supplier

Midland Alloys Inc. is a reliable supplier of Super Duplex S32760 pipes, serving both Indian, and international markets. Our ISO 9001:2015 certification ensures strict quality control and full traceability across each stage of production. Each pipe is delivered with complete documentation, including mill test certificates, and third-party inspection reports such as TUV, BV and DNV. We offer quick delivery, custom-cut solutions and dependable export logistics to clients worldwide.

FAQs: Super Duplex UNS S32760 Pipes

Yes, UNS S32760 is specifically engineered for both seawater, and sour gas environments. Its excellent resistance to chloride stress corrosion, pitting, and hydrogen sulphide makes it a best choice for offshore and petrochemical applications.

Super Duplex S32760 pipes fall under ASTM A790 and ASME SA790 standards. These standards provide for strict compliance regarding material composition, mechanical properties and pipe sizes.

The appropriate operating range of S32760 is generally between −50°C and +300°C, pressure- and media-dependent. It behaves satisfactorily  under both cryogenic and moderately high-temperature service conditions.

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