UNS S32750 / Alloy 2507 Duplex Stainless Steel Sheet and Plates Thickness 1.0 -

Regular Size of Our Duplex Stainless Steel Sheet in Stock

UNS S32750 / Alloy 2507 Duplex Stainless Steel Sheet and Plates – Thickness 1.0–30.0mm | Custom Cutting for Industrial Applications

Overview

UNS S32750, commonly known as Alloy 2507, is a super duplex stainless steel engineered for extreme environments where high strength and exceptional corrosion resistance are non-negotiable. With a balanced microstructure of approximately 50% austenite and 50% ferrite, this material delivers superior mechanical properties compared to standard austenitic (e.g., 304, 316) and even conventional duplex grades like 2205.

Our UNS S32750 / Alloy 2507 stainless steel sheets and plates are manufactured to meet international standards such as ASTM A240/A240M, EN 10088-2, and NACE MR0175/ISO 15156, ensuring reliability in the most demanding industrial sectors—including oil & gas, chemical processing, seawater desalination, power generation, and marine engineering.

Available in thicknesses ranging from 1.0 mm to 30.0 mm, our stock can be precision-cut to custom dimensions (length, width, shape) using advanced laser, plasma, or waterjet cutting technologies—minimizing waste and accelerating your project timelines.

Key Advantages of Alloy 2507

• Exceptional resistance to pitting, crevice, and stress corrosion cracking—especially in chloride-rich environments
• High tensile and yield strength: ~2x stronger than 316L stainless steel
• Excellent performance in acidic, alkaline, and high-temperature conditions
• Good weldability and fabricability when proper procedures are followed
• Low thermal expansion and high thermal conductivity enhance dimensional stability during thermal cycling

Ideal for applications involving seawater, sour gas (H₂S), brine, bleach, and aggressive chemical media.

Chemical Composition (Typical, wt%)

Note: Composition complies with ASTM A240 and EN 1.4410 (W.Nr 1.4410).

Mechanical Properties (Solution Annealed Condition)

These values significantly exceed those of standard austenitic stainless steels, enabling thinner sections and weight savings in structural designs.

Corrosion Resistance Highlights

Alloy 2507 excels in environments where other stainless steels fail:

• Critical Pitting Temperature (CPT) in 6% FeCl₃: ≥70°C
• Critical Crevice Temperature (CCT): Typically 15–20°C lower than CPT
• Resists sour service (H₂S) per NACE MR0175
• Performs well in seawater, bleach plants, and flue gas desulfurization (FGD) systems

The high PREN (Pitting Resistance Equivalent Number)—calculated as PREN = %Cr + 3.3×(%Mo) + 16×(%N)—typically exceeds 40, classifying it among the most corrosion-resistant stainless alloys available.

Available Product Specifications

All materials undergo ultrasonic testing (UT) and positive material identification (PMI) upon request to ensure integrity and traceability.

Common Industrial Applications

Its ability to withstand chloride-induced stress corrosion cracking (SCC) makes it a preferred alternative to 316L and even 904L in coastal and offshore installations.

Why Choose Our UNS S32750 Sheets & Plates?

✅ Strict Quality Control: Every batch tested for chemistry, mechanical properties, and corrosion resistance
✅ Global Standards Compliance: Meets ASTM, ASME, EN, ISO, and NACE requirements
✅ Fast Custom Cutting: Reduce lead time with in-house precision cutting capabilities
✅ Inventory Ready: Stocked in common thicknesses (1.5mm, 3mm, 6mm, 10mm, 15mm, 20mm, 25mm, 30mm)
✅ Technical Support: Our metallurgical engineers provide guidance on welding, forming, and application suitability

We supply both mill-direct and imported (European/Asian origin) material, with full documentation for traceability and compliance.

Handling & Fabrication Guidelines

• Welding: Use matching filler metals (e.g., ER2594). Maintain interpass temperature <100°C to avoid sigma phase formation. Post-weld solution annealing is generally not required but may be beneficial for critical services.
• Machining: Requires rigid setups and low speeds due to high strength; use carbide tools and ample coolant.
• Forming: Cold forming is possible within limits; hot forming recommended above 300°C if extensive deformation is needed.
• Pickling & Passivation: Essential after welding or machining to restore corrosion resistance.

Sustainability & Lifecycle Value

While Alloy 2507 carries a higher initial cost than standard stainless steels, its extended service life, reduced maintenance, and lower replacement frequency deliver significant total cost of ownership (TCO) savings—especially in corrosive or high-pressure environments.

Additionally, stainless steel is 100% recyclable, aligning with ESG and circular economy goals.

Order Information

• Minimum Order Quantity (MOQ): 1 piece (for cut-to-size); 500 kg for mill orders
• Lead Time: 3–7 days for stock items; 4–6 weeks for mill production
• Packaging: Seaworthy wooden crates or pallets with VCI paper and moisture barrier
• Shipping: Global delivery via air, sea, or land freight

Contact our technical sales team today for a free quote, material selection consultation, or CAD-based nesting optimization for your next project.

Conclusion

UNS S32750 / Alloy 2507 duplex stainless steel sheets and plates (1.0–30.0mm) represent the pinnacle of performance in harsh industrial environments. Backed by rigorous quality assurance, global certifications, and flexible customization options, our product line ensures maximum durability, safety, and operational efficiency—where failure is not an option.

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