What are the specifications of Super Duplex S32760 Seamless Pipe?

Available in UNS S32760 (ASTM A790), OD 1/2"-24" NB, Sch 10S-80S/XXS, hot finished or cold drawn seamless construction.

How does S32760 compare to 2507?

Both are super duplex grades with similar PREN values; S32760 includes tungsten and copper additions that give slightly different corrosion performance in specific media versus 2507, though the two are often treated as broadly interchangeable.

Is S32760 the same as "Zeron 100"?

Zeron 100 is a well-known proprietary trade name for the S32760 composition, originally developed and marketed under that name; the UNS designation S32760 is the generic specification reference.

What NDT is typically required for S32760 offshore piping?

Beyond standard dimensional/hydrostatic testing, radiographic or ultrasonic weld inspection, ferrite content verification, and ASTM G48 pitting resistance testing are commonly specified for critical offshore applications.

Does Sakshi Forge provide Material Test Certificates (MTC) for Super Duplex S32760 Seamless Pipe?

Yes, MTC as per EN 10204 3.1 is provided with every dispatch along with inspection reports.

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Super Duplex S32760 Seamless Pipe - High Strength, High Corrosion Resistant Pipe | Sakshi Forge

Tungsten & Copper Alloyed Super Duplex Pipe with PREN ≥ 42 for Severe Acid & Subsea Duty

Deliberate Tungsten (0.5-1.0%) + Copper (0.5-1.0%) additions for enhanced pitting and acid resistance

PREN ≥ 42 delivering exceptional performance in hot chlorinated seawater and sour gas

High mechanical yield strength (≥550 MPa) enabling lightweight high-pressure piping designs

EN 10204 3.1 MTC100% PMI TestedISO 9001:2015 CertifiedHydrostatic Tested

Hygienic Steel Grade

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MTC EN 10204 3.1 Included

Global Sea & Air Freight

Electro-Chemical Finish Certificate

Response turnaround: Under 2 hours

Product Profile

Super Duplex S32760 (UNS S32760 / EN 1.4501 / Zeron 100) is an advanced super duplex stainless steel seamless pipe distinguished by deliberate micro-additions of tungsten (0.5%-1.0%) and copper (0.5%-1.0%) alongside high chromium (24.0%-26.0%), nickel (6.0%-8.0%), molybdenum (3.0%-4.0%), and nitrogen (0.20%-0.30%). It boasts a PREN ≥ 42. The combination of tungsten and molybdenum synergistically enhances resistance to localized pitting and crevice corrosion, while the copper addition significantly improves performance in non-oxidizing and reducing acids (such as sulfuric acid). Sakshi Forge manufactures Super Duplex S32760 seamless pipes via hot extrusion and cold drawing, followed by solution annealing at 1080-1140°C and rapid water quenching. S32760 is widely specified for subsea manifold systems, offshore platform piping, FGD scrubbers, and sour gas processing facilities.

Terminology & Abbreviations

UNS S32760|S32760

Werkstoff 1.4501|1.4501

Zeron 100|Zeron100

ASTM A790 S32760|S32760

Key Technical Facts

Alloyed with 24-26% Cr, 6-8% Ni, 3-4% Mo, 0.5-1.0% W, 0.5-1.0% Cu, and 0.20-0.30% N

Tungsten addition enhances crevice corrosion resistance in aggressive chloride and acidic media

Copper addition improves corrosion resistance in reducing acids like dilute sulfuric acid

Pitting Resistance Equivalent Number including tungsten [PREN = Cr + 3.3(Mo+0.5W) + 16N] is ≥ 42

Yield strength (0.2% offset ≥ 550 MPa) enables wall thickness and weight reduction for high-pressure lines

Immune to chloride stress corrosion cracking (SCC) and certified per NACE MR0175 / ISO 15156

Solution annealed at 1080°C - 1140°C followed by rapid water quench to eliminate intermetallic phases

Hot extruded seamless pipe per ASTM A790 S32760 supplied with 100% hydrotest and PMI verification

Why Choose Sakshi Forge

Our commitment to sterile, high-purity processing makes us a trusted manufacturing partner globally.

100% Heat Lot Traceability

Every pipe stamped with heat number matching EN 10204 3.1 MTC

Positive Material Identification (PMI)

Handheld XRF testing on every length prior to dispatch

Advanced NDT Inspection

Hydrostatic test and Eddy Current / Ultrasonic flaw detection on all orders

Precision Cold Drawing

Tighter wall thickness tolerances and superior internal bore smoothness

Custom Cut Lengths

Fixed lengths up to 12 meters or custom cut-to-length options to eliminate jobsite scrap

Ferrite & Phase Balance Testing

Ferritescope testing for duplex and super duplex grades to ensure 40-60% phase balance

High-Temperature Stabilization

Controlled heat treatment to fully precipitate carbides and optimize creep life

Pan-India & Export Freight

Fast dispatch across India and seaworthy export packing for global projects

Extensive Mill Stocking

Immediate inventory availability in standard schedules from Sch 10S to Sch 160

Third-Party Inspection Approved

Full support for TUV, SGS, DNV, Bureau Veritas, and Lloyds audits

Frequently Asked Questions

Common technical and pricing queries regarding specifications and ordering.

Super Duplex S32760 seamless pipe is specified under UNS S32760 / ASTM A790 (Zeron 100). It features 25% Cr, 7% Ni, 3.5% Mo, 0.75% W, 0.75% Cu, and 550 MPa yield strength.

Partner with Sakshi Forge for Reliable Industrial Steel Solutions

Delivering precision-engineered flanges, pipes, and forged steel components designed for strength, durability, and performance in critical high-pressure industrial applications.