Silver Metals

UNS S32750 Super Duplex

Where Strength Meets Sophistication — Stainless Steel that Redefines Durability, Precision, and Lasting Elegance for Every Application.

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UNS S32750 Super Duplex

UNS S32750 is a premium super‑duplex stainless steel designed for the most aggressive environments. It offers exceptionally high strength combined with outstanding resistance to pitting, crevice and stress‑corrosion cracking in chloride‑rich and sulphide‑containing conditions.

Key Features

This alloy features elevated chromium, molybdenum and nitrogen levels, delivering superior corrosion resistance and mechanical performance. With duplex microstructure, it provides high yield strength, excellent toughness and is a top choice for critical applications in oil & gas, chemical processing, and marine industries.

Typical Applications
  • Offshore drilling platforms, risers, subsea manifolds and piping
  • Desalination plants, seawater systems and marine structural components
  • Chemical processing, pulp & paper, flue‑gas desulphurisation (FGD) equipment
  • Pressure vessels, heat exchangers and high‑load structural parts in hostile environments
  • High‑strength, corrosion‑resistant components in harsh offshore, chemical or marine settings
Forms of Supply

Supplied in solution‑annealed condition as plates, sheets, bars, forgings, pipes and tubes. Cut‑to‑size, machined and finished options available with full certification and traceability for the UAE & Gulf region.

Technical Specifications

Specifications
  • Carbon (C): ≤ 0.030% – limits carbide precipitation and preserves corrosion resistance.
  • Silicon (Si): ≤ 0.80% – assists de‑oxidation and structural stability.
  • Manganese (Mn): ≤ 1.20% – improves toughness and strength.
  • Phosphorus (P): ≤ 0.035% – helps maintain cleanliness and ductility.
  • Sulfur (S): ≤ 0.020% – ensures weldability and high corrosion resistance.
  • Chromium (Cr): 24.0‑26.0% – provides superior corrosion resistance and strength.
  • Nickel (Ni): 6.0‑8.0% – enhances toughness and stabilises microstructure.
  • Molybdenum (Mo): 3.0‑5.0% – significantly boosts resistance to pitting and crevice corrosion.
  • Nitrogen (N): 0.24‑0.32% – improves both strength and corrosion resistance.
  • Iron (Fe): Balance – main matrix element.
Certifications
  • Standard Mill Test Certificate (MTC) supplied covering chemical and mechanical test data.
  • EN 10204 3.1 / 3.2 inspection certificates or equivalent third‑party verification available upon request.
  • Conforms with standards such as ASTM A182/A815, ASME, NORSOK for super‑duplex grades.
  • Project‑specific traceability, third‑party inspection, NDT or custom certification packages can be arranged — please contact our sales team for requirements.

Technical Assistance

Our expert team and in-house metallurgists are available to provide guidance on any technical queries. At Silver Metal, we combine extensive industry knowledge with rigorous quality control to ensure every product meets the highest standards.

Silver Metal supplies high-quality metals and materials for a wide range of industries, including construction, oil & gas, manufacturing, and architectural projects across the UAE and Gulf region.

Yes! We offer tailored solutions and processing options to meet your exact project requirements. Our team can guide you through customization for all our products.

Absolutely. Each product comes with detailed technical datasheets, and our in-house metallurgists are available to assist with any technical queries.

You can easily contact our team via the website to request a quote or discuss your project. We provide professional support to ensure your requirements are met accurately and efficiently.

Custom Orders & Support

Looking for a specific grade, finish, or size? Our team provides tailored metal solutions to match your project requirements. Contact us today.

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