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Super Duplex Stainless Steel Pipe UNS S32760 SCH40S 6m Length
| Place of Origin | China |
|---|---|
| Brand Name | DELTA |
| Certification | ISO |
| Model Number | S32760 |
| Minimum Order Quantity | 500 kgs |
| Price | 5-10 USD/Kg |
| Packaging Details | standard packing for export |
| Delivery Time | 5 - 12 days based on the quantity |
| Payment Terms | L/C,T/T,Western Union |
| Supply Ability | 3 Ton per week |
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xProduct Details
| Products | Stainless Steel Seamless Pipe | Grade | S32760 |
|---|---|---|---|
| Diameter | DN10 - DN400 | Length | 6m Or Custom Cutting Any Length As Request |
| Standard | ASTM EN | Service | Cutting |
| Loading Port | Shanghai Port | Thickness | 4.0 - 50.0mm |
| Highlight | Super Duplex stainless steel pipe,UNS S32760 SCH40S pipe,6m length stainless steel pipe |
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Product Description
Super Duplex Stainless Steel Pipe UNS S32760 SCH40S Stainless Hollow Pipe Tubing in 6m Length
Products Specification
| Products Name | S2760 Duplex Stainless Steel Seamless Pipe |
Grade: |
304 304L 309S 310S 314 316L 316Ti 321 329 347H 410 2205 2507 S32760 904L 254SMO and equal grade in GB JIS EN DIN Standard |
| Standards: | ASTM A213M-94b ASTM A249M-94a ASTM A269-94a ASTM A312M-94b,ect. |
| DIN 17456-85 DIN 17458-85 DIN 17459-92.ect | |
| JIS G3446-1994 JIS G3448-1997 JIS G3459-1997 JIS G3463-1994,ect. | |
| GB13296-1991 GB14975-2002 GB14976-2002,ect. | |
| Size: | ND5 - DN400 |
| Length: | 6m length or cutting any length as request |
| Applications: | fluid and gas transport, structure , boiler, heat exchanger, super heater |
Overview
UNS S32760 super duplex stainless steel pipes are high-performance hollow tubing engineered to deliver exceptional strength, corrosion resistance, and durability in extreme environments. Combining the benefits of austenitic and ferritic stainless steel phases (typically 40-60% each), these pipes offer superior mechanical properties compared to standard duplex grades. With a SCH40S schedule and 6m length, they are designed for reliable performance in high-pressure, corrosive, and temperature-varying applications across critical industries.
Key Parameters
- Alloy Grade: UNS S32760 (also known as 2507-Plus or Zeron® 100, a super duplex alloy with high chromium, molybdenum, and nitrogen content).
- Chemical Composition (Typical, %):
- Chromium (Cr): 24.0 - 26.0 (enhances oxidation and general corrosion resistance).
- Nickel (Ni): 6.0 - 8.0 (stabilizes the austenitic phase, improving toughness and ductility).
- Molybdenum (Mo): 3.0 - 4.0 (boosts resistance to pitting and crevice corrosion, especially in chloride-rich environments).
- Nitrogen (N): 0.20 - 0.30 (strengthens the alloy, enhances pitting resistance, and stabilizes the duplex structure).
- Iron (Fe): Balance.
- Other elements: Carbon (C) ≤ 0.03, Silicon (Si) ≤ 1.0, Manganese (Mn) ≤ 1.0, Copper (Cu) 0.5 - 1.0, Tungsten (W) 0.5 - 1.0 (improves corrosion resistance in harsh media).
- Mechanical Properties:
- Tensile Strength: ≥ 800 MPa.
- Yield Strength: ≥ 550 MPa (significantly higher than austenitic stainless steels like 316).
- Elongation: ≥ 25% (good ductility for forming and welding).
- Hardness: ≤ 31 HRC.
- Corrosion Resistance: Excellent pitting resistance equivalent (PREN ≥ 40), resistant to chloride-induced stress corrosion cracking (SCC), pitting, and crevice corrosion.
Standards
UNS S32760 super duplex pipes adhere to stringent international standards to ensure quality and consistency:
- ASTM A790/A790M (Standard Specification for Seamless and Welded Ferritic/Austenitic Duplex Stainless Steel Pipe).
- ASTM A928/A928M (Standard Specification for Welded Ferritic/Austenitic Duplex Stainless Steel Tube for General Service).
- ASME SA790 (Code for pressure vessel and piping applications, widely used in energy and chemical industries).
- EN 10217-7 (European standard for welded stainless steel tubes for pressure purposes, applicable to super duplex grades).
Specifications
- Form: Hollow pipe/tubing (available in seamless or welded variants, depending on application requirements).
- Schedule: SCH40S (a standard wall thickness designation for stainless steel pipes, balancing strength and weight for medium to high-pressure systems).
- Length: 6m (standard length, customizable to shorter lengths upon request for specific project needs).
- Outer Diameter (OD): Typically ranges from 1/2 inch (12.7mm) to 12 inches (304.8mm) (covers a broad spectrum of industrial piping requirements).
- Wall Thickness: Conforms to SCH40S standards (varies with OD; e.g., 0.154 inches for 2-inch OD, 0.216 inches for 4-inch OD).
- Surface Finish: Generally pickled and passivated (removes scale, improves corrosion resistance, and provides a clean, uniform surface).
Similar Grades
UNS S32760 is part of the super duplex stainless steel family, with several comparable grades offering high performance in corrosive environments:
- UNS S32750 (2507): A widely used super duplex grade with slightly lower tungsten and copper content, offering similar corrosion resistance and strength.
- UNS S32550 (Ferralium 255): Combines high chromium, molybdenum, and nickel for resistance to acidic and chloride environments, with marginally lower tensile strength than S32760.
- UNS S32900: A duplex grade (not "super") with lower molybdenum and nitrogen, suitable for less aggressive environments.
- EN 1.4501: European equivalent to S32760, with matching chemical composition and mechanical properties.
Applications
UNS S32760 super duplex pipes are engineered for the most demanding industrial environments, making them ideal for:
- Oil and Gas Industry: Offshore and onshore pipelines, risers, and wellhead equipment, where resistance to seawater, sour gas (H₂S), and high pressure is critical.
- Chemical Processing: Piping for handling acids (e.g., sulfuric acid, hydrochloric acid), chlorides, and aggressive chemicals, as well as reactors and heat exchangers.
- Desalination Plants: Systems for seawater intake, reverse osmosis, and brine handling, where chloride-induced corrosion is a major concern.
- Marine Engineering: Hull components, ballast tanks, and offshore platforms, resisting saltwater corrosion and biofouling.
- Power Generation: Flue gas desulfurization (FGD) systems, cooling water pipes, and wastewater treatment lines in fossil fuel and nuclear power plants.
- Pulp and Paper Industry: Digester piping and bleaching systems, withstanding harsh chemicals like chlorine dioxide.
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