Introduction
The ASTM A182 S32205 F60 WNRF Forged Flanges are high-performance duplex stainless steel flanges designed for use in oil & gas, petrochemical, power, and marine applications. With a balanced austenitic-ferritic microstructure, duplex grade F60 (UNS S32205) offers twice the strength of conventional austenitic stainless steels and superior resistance to chloride-induced stress corrosion cracking, pitting, and crevice corrosion.
The Weld Neck Raised Face (WNRF) design provides excellent strength, fatigue resistance, and leak-proof connections, making it ideal for high-pressure and high-temperature piping systems.
Key Features
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Material: Duplex Stainless Steel F60 (UNS S32205, 1.4462)
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Standard: ASTM A182 / ASME B16.5
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Type: Weld Neck Raised Face (WNRF) Forged Flange
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Class: Available in 150#, 300#, 600#, 900#, up to 2500#
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Size Range: 1/2″ to 48″ (DN15 – DN1200)
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Strength: Yield ≥450 MPa, Tensile ≥620 MPa
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Corrosion Resistance: Superior resistance in seawater, brine, and aggressive chemicals
Specifications
| Item | Details |
|---|---|
| Standard | ASTM A182 / ASME B16.5 |
| Material | Duplex Stainless Steel S32205 F60 (UNS S32205, 1.4462) |
| Type | Weld Neck Raised Face (WNRF) Forged Flange |
| Pressure Class | 150# – 2500# |
| Size | 1/2″ – 48″ |
| Applications | Offshore, Oil & Gas, Petrochemical, Power Generation, Marine Systems |
Advantages of S32205 F60
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High Strength – nearly double that of 304/316 stainless steels.
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Excellent Corrosion Resistance – PREN > 34 ensures superior resistance to pitting and crevice corrosion.
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Chloride SCC Resistance – ideal for marine and subsea service.
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Weldability – suitable for complex piping systems with reliable performance.
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Cost-Effective Alternative – replaces higher-cost nickel alloys in many applications.
Applications
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Oil & Gas Industry – subsea pipelines, risers, and manifolds.
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Marine & Offshore – seawater cooling, desalination plants.
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Petrochemical Plants – process piping for chlorides and acids.
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Power Generation – high-pressure boiler and heat exchanger piping.
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Desalination – intake and brine discharge systems.
Quality Assurance
DLSS ensures strict compliance with international standards:
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Forged & Heat Treated for optimum mechanical properties.
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PMI Testing for chemical composition verification.
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NDT (UT, ET, RT) to ensure defect-free integrity.
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Dimensional & Pressure Testing as per ASME standards.
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Third-Party Inspection (SGS, BV, TUV, LR) available upon request.
FAQ
Q1: Why choose duplex F60 flanges over 316L?
A1: Duplex F60 provides higher strength and much better chloride corrosion resistance, making it ideal for offshore and chemical applications.
Q2: What is WNRF?
A2: Weld Neck Raised Face flange design provides strong weld connections and enhanced gasket sealing for high-pressure service.
Q3: Can DLSS supply customized flanges?
A3: Yes, DLSS provides tailored dimensions, classes, and surface finishes upon customer request.
Why Choose DLSS?
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30+ years of experience in stainless steel flanges and fittings.
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Extensive global references in offshore, oil & gas, power, and chemical projects.
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Comprehensive QC & certification ensures reliability.
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Seaworthy packaging with PE caps, anti-rust coating, and wooden cases.
