Chemical Processing Corrosion Resistant S32760 Screwed Flange

In chemical processing and acid-handling loops, piping components must resist chemical attack while maintaining reliable fluid containment. Dafugui's Chemical Processing Corrosion Resistant S32760 Screwed Flange provides a compact, non-welded joining method for dosing systems, reactor skids, and acid transfer lines. Manufactured from solid-forged super duplex steel, these flanges assist in managing micro-cracking and fluid erosion under continuous plant operation.

Chemical Process Resistance

• Acid Handling Resistance: UNS S32760 super duplex exhibits broad resistance to organic acids (such as formic and acetic acids) as well as inorganic acid solutions present in chemical synthesis systems.

• Cold Installation Capability: In chemical environments where volatile organic compounds (VOCs) are present, threaded connections facilitate installation without requiring open flames or welding torches.

• Temperature Operational Limits: Chemical Processing Corrosion Resistant S32760 Screwed Flange is suitable for fluid lines operating within continuous thermal ranges up to 260°C (500°F). (Note: Threaded connections should be evaluated carefully in systems subject to rapid thermal cycling to prevent joint relaxation).

Material Compliance

Chemical Quality Protocols

• 100% Positive Material Identification (PMI): Portable XRF spectrographic verification performed on all raw forged blanks to ensure exact alloy composition.

• Sealing Surface Roughness Measurement: Sealing faces (RF/FF) controlled between Ra 3.2 µm and 6.3 µm (125–250 µin) in accordance with ASME B16.5 requirements.

• Thread Engagement Verification: Inspected using master thread gauges to verify pitch diameter and thread depth.

Factory Advantage: Custom Alloy Machining

• In-House CNC Machining & Material Control: Dafugui manages raw material selection, forging, CNC turning, and testing under a unified quality system, reducing cross-contamination risks with carbon steel materials.

• Custom OEM Fabrication: Capable of producing non-standard dimensions, special thread pitches, and custom flange facings based on client engineering drawings.

Zhejiang Dafugui S32760 Flanges Details

Zhejiang Dafugui S32760 Flanges PROCESS flow

Commercial & Procurement Terms

• MOQ: 1 Piece

• Standard Delivery Lead Time: 15–30 Days

• Warranty Period: 12 Months quality warranty covering manufacturing defects from shipment date

• Custom Identification: Laser marking or deep steel stamping of heat number, brand, material grade, and project tag codes on flange rims

Frequently Asked Questions

• When should threaded Chemical Processing Corrosion Resistant S32760 Screwed Flange be specified instead of welded flanges in chemical plants?
Threaded flanges are suitable for smaller nominal pipe sizes, high-pressure chemical dosing skids, and field retrofits where hot work is prohibited or post-weld heat treatment is impractical.

• What material certificates are provided for chemical plant validation?
Dafugui provides EN 10204 3.1 Material Test Certificates detailing chemical analysis, mechanical property tests, heat treatment parameters, and PMI results.

• Does Dafugui offer third-party inspection options for international projects?
Yes. We regularly coordinate third-party inspection visits with SGS, TÜV, BV, and Intertek upon request.