Introduction
ASME SA182 F53 Forged Flange (UNS S32750) is a super duplex stainless steel flange offering outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, while providing twice the strength of standard austenitic stainless steels.
DLSS supplied a batch of Weld Neck Flat Face (WNFF) flanges, 6″, SCH40, CL150, manufactured to ASME SA182 and dimensionally compliant with ASME B16.5, exported to New Zealand for a project requiring reliable performance in marine and chemical service environments.
Key Features
-
Material: ASME SA182 F53 (UNS S32750, Super Duplex Stainless Steel)
-
Type: Weld Neck Forged Flange (WNFF)
-
Size: 6″ (DN150)
-
Schedule: SCH40
-
Pressure Class: CL150
-
Standard: ASME B16.5
-
Surface: Machined / Rust Preventive Coated
-
Strength: Yield strength ≈ 550 MPa (about 2× that of 316L)
-
Corrosion Resistance: Excellent against chlorides, seawater, and aggressive chemicals
Specifications
| Item | Details |
|---|---|
| Standard | ASME SA182 / ASME B16.5 |
| Material | Super Duplex Stainless Steel F53 (UNS S32750) |
| Type | Weld Neck Forged Flange (WNFF) |
| Size | 6″ (DN150) |
| Schedule | SCH40 |
| Pressure Class | CL150 |
| Destination | New Zealand |
| Applications | Offshore, Marine, Oil & Gas, Chemical Plants, Power Generation |
Applications
-
Offshore Platforms & Subsea Pipelines – high chloride resistance.
-
Marine Engineering – seawater cooling and desalination systems.
-
Oil & Gas Industry – risers, manifolds, and process piping.
-
Chemical & Petrochemical Plants – acid and chloride-rich process units.
-
Power Generation – heat exchangers and high-pressure piping systems.
Why Choose F53 Super Duplex?
-
High Strength – nearly double that of standard stainless steel (304/316).
-
Superior Corrosion Resistance – resists pitting (PREN > 40) and chloride SCC.
-
Cost-Effective – replaces more expensive nickel alloys in many applications.
-
Extended Service Life – reliable in seawater, brine, and aggressive environments.
Why Choose DLSS?
-
Expertise in super duplex flanges and fittings: F53 (S32750), F55 (S32760).
-
Strict Quality Assurance – PMI, UT, ET, Hydro, Dimensional Checks.
-
Third-Party Certification – SGS, BV, TUV available.
-
Export Packaging – seaworthy cases with anti-rust protection.
-
Global Projects – long-term supply to New Zealand, Australia, Middle East, Europe.
