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Super Duplex S32760 | Product Overview
Introduction To Super Duplex Stainless Steel S32760
Super Duplex Stainless Steel S32760 (commonly called PREN 50 stainless steel) is a premium duplex stainless steel grade with superior resistance to pitting, crevice corrosion, and stress corrosion cracking. It contains high chromium, molybdenum, and nitrogen content, making it one of the most corrosion-resistant stainless steels available.
Moksh Tubes & Fittings LLP is a reliable supplier, exporter, importer, and stockist of Super Duplex Stainless Steel S32760 (UNS S32760 / ASTM A182 F55) in multiple product forms including Pipes & Tubes, Sheets, Plates, Coils, Bars, Pipe Fittings, Flanges, Fasteners, Welding Rods, Wire Mesh, and custom-fabricated components.
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Duplex Stainless Steel S31803 Specifications
| Category | Details |
|---|---|
| Grade | Super Duplex S32760 / UNS S32760 / ASTM A182 F55 |
| Type | Super Duplex Stainless Steel |
| Conditions | Hot Rolled, Annealed, Cold Drawn, Solution Annealed |
| Testing | Tensile, Hardness, PMI, Impact, Corrosion Testing |
| Certification | EN 10204 3.1 / 3.2 |
Chemical Composition of Super Duplex S32760
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 24 – 26 |
| Nickel (Ni) | 6 – 7 |
| Molybdenum (Mo) | 3 – 5 |
| Nitrogen (N) | 0.24 – 0.32 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.020 |
| Carbon (C) | ≤ 0.030 |
| Iron (Fe) | Balance |
PREN 40, confirming super duplex grade with excellent seawater corrosion resistance.
Technical Properties of Super Duplex S32760
Physical Properties of Super Duplex S32760
| Property | Value |
|---|---|
| Density | 7.80 g/cm³ |
| Melting Point | 1390–1450°C |
| Elastic Modulus | 200 GPa (29,000 ksi) |
| Thermal Conductivity | 16–19 W/m·K |
| Specific Heat | 500 J/kg·K |
| Magnetic Response | Slightly Magnetic |
Heat Treatment of Super Duplex Stainless Steel S32760
| Process | Temperature | Cooling Method |
|---|---|---|
| Solution Annealing | 1050–1120°C | Water Quench |
| Stress Relieving / Aging (optional) | 350–450°C | Air Cool |
| Machining / Post-Weld Heat Treatment | 900–950°C (local) | Air or Controlled Cool |
S32760 is typically used in solution-annealed condition to achieve maximum corrosion resistance and mechanical properties.
Mechanical Properties of Super Duplex Stainless Steel S32760
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength | 800 – 900 MPa | 116,000 – 130,500 psi |
| Yield Strength (0.2%) | 550 – 700 MPa | 79,800 – 101,500 psi |
| Elongation | ≥ 25% | ≥ 25% |
| Hardness | ≤ 95 HRB | ≤ 95 HRB |
| Impact Toughness | Excellent | Excellent |
| PREN | ≥ 40 | ≥ 40 |
International Standards & Equivalent Grades
| Standard | Equivalent |
|---|---|
| UNS | S32760 |
| EN / DIN | 1.4501 |
| ASTM | A182 F55, A240, A276, A479, A789, A790 |
| ASME | SA182 F55, SA240, SA789, SA790 |
| ISO | 17784 |
| NACE | MR0175 / ISO 15156 (H₂S service) |
Products in Super Duplex Stainless Steel S32760
Super Duplex Stainless Steel S32760 is available in a variety of mill forms:
✔
Seamless Pipes
✔
Welded Pipes (ERW & EFW)
✔
Tubes (Capillary, U-Bend)
✔
Sheets & Plates
✔
Coils & Strips
✔
Round Bars, Flat Bars, Hex Bars, Square Bars
✔
Pipe Fittings (Elbows, Tees, Reducers, Caps, Stub Ends)
✔
Flanges (Weld Neck, Slip-On, Blind, Socket Weld, Threaded)
✔
Fasteners (Bolts, Nuts, Screws, Washers, Studs)
✔
Custom Fabricated Components
We supply Super Duplex Stainless Steel S32760 materials in accordance with the most stringent industry standards:
Uses and Advantages
Exceptional resistance to chloride-induced stress corrosion cracking
Superior pitting and crevice corrosion resistance, especially in seawater
Excellent mechanical strength at elevated temperatures
Good weldability and formability
Long service life in harsh, aggressive environments
Applications of Super Duplex Stainless Steel S32760
Super Duplex Stainless Steel S32760 is widely used across multiple industries:
Offshore Oil & Gas
Platforms, risers, subsea equipment, and pipelines.
Desalination Plants
Seawater cooling systems and desalination equipment.
Chemical Processing
Reactors, heat exchangers, and piping for chemical industries.
Marine Engineering
Offshore structures and seawater applications.
Pressure Vessels
Vessels operating in aggressive corrosive environments.
WHY CHOOSE US?
Duplex Stainless Steel S31803 Price per kg in India
Typical Range: ₹650 – ₹1,300 per kg
( Prices vary based on size, thickness, form & order quantity.)
Contact us for exact quotation based on size and quantity.
FAQ's
Why is Super Duplex S32760 highly corrosion-resistant?
Due to its high chromium, molybdenum, and nitrogen content, it has excellent resistance to pitting, crevice corrosion, and chloride stress corrosion cracking.
Is S32760 weldable?
Yes, but welding requires controlled heat input and post-weld heat treatment to maintain corrosion resistance and mechanical properties.
Where is S32760 most commonly used?
Primarily in offshore oil & gas, marine engineering, and desalination plants, where chloride resistance is critical.
Can S32760 be used in seawater applications?
Yes, it offers excellent resistance to seawater corrosion and stress corrosion cracking.
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For inquiries, pricing, or customized Super Duplex Stainless Steel S32760 solutions, Moksh Tubes & Fittings LLP is your reliable partner in Super Duplex Stainless Steel S32760.
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